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--- a/develop/doc/_sources/howto/dev/contribute_to_paddle_en.md.txt
+++ b/develop/doc/_sources/howto/dev/contribute_to_paddle_en.md.txt
-# Contribute Code
-We sincerely appreciate your contributions. You can use fork and pull request
-workflow to merge your code.
-## Code Requirements
- Your code comments must be fully documented by
-  [Doxygen](http://www.stack.nl/~dimitri/doxygen/) style.
- Make sure the compiler option `WITH_STYLE_CHECK` is on and the compiler
-  passes the code style check.
- All code must have unit test.
- Pass all unit tests.
-The following tutorial guides you into submitting your contibution.
-## [Creating a Fork](https://help.github.com/articles/fork-a-repo/)
-Just head over to the GitHub page and click the "Fork" button.
-It's just that simple.
-## Clone
-Clone remote repository.
-```bash
-➜  git clone https://github.com/USERNAME/Paddle
-➜  cd Paddle
-```
-## Create a local branch
-Paddle is currently using [Git-flow branching model](http://nvie.com/posts/a-successful-git-branching-model/).
-All feature and bug fix development work should be done on a new branch, generally create new branch from `develop` branch .
-```bash
-➜  git checkout -b my-cool-stuff
-```
-Before the checkout, you need to keep the current branch directory clean, otherwise the untracked file will be brought to the new branch, which can be inspected by `git status`.
-## Using `pre-commit` hook
-Paddle developers use [pre-commit](http://pre-commit.com/) tool to manage git
-pre-commit hooks. It can help us format source codes (cpp, python), check some
-basic thing before commit (only one EOL for each file, do not add a huge file
-in git). `pre-commit` tests is a part of unit tests in Travis-CI now, every
-PR doesn't fit hook can not be merged into Paddle.
-To use [pre-commit](http://pre-commit.com/), you should install it by
-`pip install pre-commit`, and currently, Paddle uses `clang-format` to format
-c/cpp sources. Please make sure clang-format 3.8+ installed.
-Install and run it as follow:
-```bash
-➜  pip install pre-commit
-➜  pre-commit install
-```
-When you commit your code, the pre-commit hook will check the local code if there is
-anything not suitable to commit, and so on.
-## Start to develop
-In this tutorial, I delete a line in README.md and created a new file.
-We can use `git status` to inspect the changes of current directory, `git diff` to see difference.
-```bash
-➜  git status
-On branch test
-Changes not staged for commit:
-  (use "git add <file>..." to update what will be committed)
-  (use "git checkout -- <file>..." to discard changes in working directory)
-	modified:   README.md
-Untracked files:
-  (use "git add <file>..." to include in what will be committed)
-	test
-no changes added to commit (use "git add" and/or "git commit -a")
-```
-## Build and Test
-We package PaddlePaddle's compile environment into a Docker image, called the develop image named `paddle:dev`, it contains all compiling tools that PaddlePaddle needs. 
-If you want to build the develop image, just run:
-```bash
-➜  docker build -t paddle:dev .
-```
-Then we can use the develop image to build PaddlePaddle source. For example:
-```bash
-➜  docker run -v $(pwd):/paddle -e "WITH_GPU=OFF" -e "WITH_AVX=ON" -e "WITH_TEST=ON" paddle:dev
-```
-The above command will compile PaddlePaddle and create a Dockerfile for building production image. All the generated files are in the build directory. "WITH_GPU" controls if the generated production image supports GPU. "WITH_AVX" controls if the generated production image supports AVX. "WITH_TEST" controls if the unit test will be generated.
-Then we can generate the production image by copying the compiled PaddlePaddle program into the image by
-```bash
-➜  docker build -t paddle:prod -f build/Dockerfile .
-```
-Run unit test finally:
-```bash
-➜  docker run -it -v $(pwd):/paddle paddle:dev bash -c "cd /paddle/build && ctest"
-```
-For more details, you can read [this doc](https://github.com/PaddlePaddle/Paddle/blob/develop/doc/getstarted/build_and_install/docker_install_en.rst).
-## Commit
-Next we cancel the changes to the README.md file and then commit our changes by following command lines:
-```bash
-➜  git checkout -- README.md
-➜  git status
-On branch test
-Untracked files:
-  (use "git add <file>..." to include in what will be committed)
-	test
-nothing added to commit but untracked files present (use "git add" to track)
-➜  git add test
-```
-We should write a description of each commit by `git commit` to allow others to know
-the changes in these files.
-```bash
-➜  git commit
-CRLF end-lines remover...............................(no files to check)Skipped
-yapf.................................................(no files to check)Skipped
-Check for added large files..............................................Passed
-Check for merge conflicts................................................Passed
-Check for broken symlinks................................................Passed
-Detect Private Key...................................(no files to check)Skipped
-Fix End of Files.....................................(no files to check)Skipped
-clang-formater.......................................(no files to check)Skipped
-[my-cool-stuff c703c041] add test file
- 1 file changed, 0 insertions(+), 0 deletions(-)
- create mode 100644 233
-```
-## Keeping Fork Up to Date
-Before pull your request, you should sync your code from the latest PaddlePaddle.
-To do this, you'll need to add a remote at first:
-```bash
-➜  git remote add upstream https://github.com/PaddlePaddle/Paddle
-➜  git remote
-origin
-upstream
-```
-Update your fork with the latest upstream changes:
-```bash
-➜  git fetch upstream
-➜  git pull upstream develop
-```
-Now, your local master branch is up-to-date with everything modified upstream.
-## Push to GitHub
-```bash
-# push to your repository in Github
-➜  git push origin my-cool-stuff
-```
-## Create an issue and a Pull Request
-Create an Issue to describe the problem and record its number.
-Go to the page for your fork on GitHub, select your development branch,
-and click the `New pull request`.
-<img width="295" alt="screen shot 2017-04-26 at 9 09 28 pm" src="https://cloud.githubusercontent.com/assets/11692045/25436054/a6d98c66-2ac4-11e7-9cb1-18dd13150230.png">
-Then select the target branch:
-<img width="750" alt="screen shot 2017-04-26 at 9 11 52 pm" src="https://cloud.githubusercontent.com/assets/11692045/25436139/f83b1e6c-2ac4-11e7-8c0e-add499023c46.png">
-We can add `resolve #Issue number` in PR description to close the issue automatically after the PR is merge. More details in <https://help.github.com/articles/closing-issues-via-commit-messages/>.
-Then wait for review, if there need to modify, refer to the above steps to update the corresponding origin branch.
-## Delete origin branch
-After the PR is merge into the main repository, we can delete the remote branch on the PR page.
-<img width="775" alt="screen shot 2017-04-26 at 9 18 24 pm" src="https://cloud.githubusercontent.com/assets/11692045/25436457/e4cdd472-2ac5-11e7-9272-badc76c4a23e.png">
-Or just run:
-```bash
-➜  git push origin :my-cool-stuff
-```
-## Delete local branch
-Finally, we delete local branch:
-```bash
-➜  git checkout develop 
-# delete my-cool-stuff branch
-➜  git branch -D my-cool-stuff
-```
--- a/develop/doc/api/index_en.html
+++ b/develop/doc/api/index_en.html
@@ -131,7 +131,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v1/data_provider/dataprovider_en.html
+++ b/develop/doc/api/v1/data_provider/dataprovider_en.html
@@ -129,7 +129,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v1/data_provider/pydataprovider2_en.html
+++ b/develop/doc/api/v1/data_provider/pydataprovider2_en.html
@@ -129,7 +129,6 @@
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 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v1/index_en.html
+++ b/develop/doc/api/v1/index_en.html
@@ -129,7 +129,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v1/predict/swig_py_paddle_en.html
+++ b/develop/doc/api/v1/predict/swig_py_paddle_en.html
@@ -129,7 +129,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/config/activation.html
+++ b/develop/doc/api/v2/config/activation.html
@@ -132,7 +132,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/config/attr.html
+++ b/develop/doc/api/v2/config/attr.html
@@ -132,7 +132,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/config/evaluators.html
+++ b/develop/doc/api/v2/config/evaluators.html
@@ -132,7 +132,6 @@
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 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/config/layer.html
+++ b/develop/doc/api/v2/config/layer.html
@@ -132,7 +132,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/config/networks.html
+++ b/develop/doc/api/v2/config/networks.html
@@ -132,7 +132,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/config/optimizer.html
+++ b/develop/doc/api/v2/config/optimizer.html
@@ -132,7 +132,6 @@
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 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/config/pooling.html
+++ b/develop/doc/api/v2/config/pooling.html
@@ -132,7 +132,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/data.html
+++ b/develop/doc/api/v2/data.html
@@ -132,7 +132,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/model_configs.html
+++ b/develop/doc/api/v2/model_configs.html
@@ -132,7 +132,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/api/v2/run_logic.html
+++ b/develop/doc/api/v2/run_logic.html
@@ -131,7 +131,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/design/api.html
+++ b/develop/doc/design/api.html
@@ -129,7 +129,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../howto/dev/build_en.html">Build PaddlePaddle from Source Code and Run Unit Test</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../howto/dev/new_layer_en.html">Write New Layers</a></li>
-<li class="toctree-l2"><a class="reference internal" href="../howto/dev/contribute_to_paddle_en.html">Contribute Code</a></li>
 <li class="toctree-l2"><a class="reference internal" href="../howto/deep_model/rnn/index_en.html">RNN Models</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="../howto/deep_model/rnn/rnn_config_en.html">RNN Configuration</a></li>
 </ul>

--- a/develop/doc/design/auto_gradient_check.html
+++ b/develop/doc/design/auto_gradient_check.html
@@ -129,7 +129,6 @@
 <li class="toctree-l2"><a class="reference internal" href="../howto/usage/k8s/k8s_aws_en.html">Distributed PaddlePaddle Training on AWS with Kubernetes</a></li>
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+++ b/develop/doc/v1_api_tutorials/embedding_model/index_en.html
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