* modify user_guide_howto_training_1

* remove server after pserver

lack of configuration source data example

* fix indent problem

* fix indent in english version

pass is the key word in python
acc.update should be in the for loop

1.  Word2vec , Individual Recommendation , Sentiment Analysis in the beginner's guide 三篇文档的链接指向了中文文档，修正为英文文档
2. Fluid Model Library文档由于更改了名字，链接变为死链，进行了修正

* update models link

* fix en

* update title

* fix cn title

* follow comment

update inference/build_and_install_lib

remove the useless requirement

fix the kubectl address test=develop

* add deploy ctr doc on baidu cloud
test=develop

* test=develop

* test=develop

* test=develop

* deadlink0325

* update

* add api_guides low_level backward parameter program_en

* Apply suggestions from code review
Co-Authored-By: Nzy0531 <48094155+zy0531@users.noreply.github.com>

* Apply suggestions from code review
Co-Authored-By: Nzy0531 <48094155+zy0531@users.noreply.github.com>

* Update backward_en.rst

* Update parameter_en.rst

* Update program_en.rst

* Update doc/fluid/api_guides/low_level/program_en.rst

* Create quick_start.rst

* Update quick_start.rst

* Update quick_start.rst

* Update quick_start.rst

* Update quick_start.rst

* Update quick_start.rst

* Update quick_start.rst

* update quick_start

* rename title

* add gpu dist train best practice

* fix styles

* update

* update

* Fix arguments according to 1.3 en + ceil,floor trans +operator trans

* fix LoDTensorArray spell

* fix typo of models

* fix en

* improve save_load_variables

* Update save_load_variables.rst

* 1220 update cnapi

* Apply suggestions from code review
Co-Authored-By: Nhaowang101779990 <31058429+haowang101779990@users.noreply.github.com>

* routine bug fix

* update text info

* fix io_cn all

* 持久性变量=>长期变量

* fix textual content

* fix issue #682 3 3.2

* fix issues in conv

This reverts commit 669ad78e.

* synchronize with develop (#642)

* update_commitid1.3 (#641)

* update inference c++ API doc (#634)

* update inference c++ API doc

* fix link

* thorough clean for doc (#644)

* thorough clean

* delete_DS_Store

* Cherrypick1.3 (#652)

* thorough clean

* delete_DS_Store

* [Don't merge now]update_install_doc (#643)

* update_install_doc

* follow_comments

* add maxdepth (#646)

* upload_md (#649)

* update_version (#650)

* Translation of 16 new apis (#651)

* fix_windows

* Final update 1.3 (#653)

* thorough clean

* delete_DS_Store

* update_1.3

* Deadlink fix (#654)

* fix_deadlinks

* update_docker

* Update release_note.rst

* Update index_cn.rst

* update_Paddle (#658)

* fix pic (#659)

* [to 1.3] cn api debug (#655) (#661)

* debug

* fix 2 -conv2d

* "锚" ==> anchor(s)

* Weekly cherrypick0302 (#668)

* Update programming_guide.md (#664)

* Update programming_guide.md

* Update programming_guide_en.md

* Update cn api to 1.3 (#663)

* Update cn api to 1.3 fluid & layers

* Rest to 1.3

* Weeklyupdate 0301 (#666)

* Tables_rm_op

* update_op

* update_index

* update_book_0302 (#667)

* fix_format (#669) (#670)

* fix_format

* Update Tables.md

* Update Tables_en.md

* add dataset api_cn (#673)

* rm fluid.core in desigin_idea (#674)

* Update fluid_design_idea.md

* Update fluid_design_idea_en.md

* Fix array_read code example error. (#671)
Signed-off-by: Nzhaoyuchen <zhaoyuchen01@baidu.com>

* add data_reader_cn (#676)

* fix doc error (#675)

* update_book_commitid (#680)

* update_book_commitid

* commitid0309

* fix typo

* book indexes (#677)

* update_book_commitid

* commitid0309

* fix typo