update paddle-mobile doc (#952)

* update paddle-mobile doc

* delete untracked file

doc/fluid/advanced_usage/deploy/mobile/mobile_readme.md

@@ -55,7 +55,7 @@
 
 ### 2. Caffe转为Paddle Fluid模型
 
-请参考这里[这里](https://github.com/PaddlePaddle/models/tree/develop/fluid/PaddleCV/caffe2fluid)
+请参考这里[这里](https://github.com/PaddlePaddle/models/tree/develop/PaddleCV/caffe2fluid)
 
 ### 3. ONNX
 
@@ -69,9 +69,10 @@ ONNX全称为“Open Neural Network Exchange”，即“开放的神经网络切
 
 [下载链接](http://mms-graph.bj.bcebos.com/paddle-mobile%2FmodelsAndImages.zip)
 
-## 问题解决
-
-欢迎提出或解决我们的问题，有疑问可以发[Issue](https://github.com/PaddlePaddle/paddle-mobile/issues)
+## 交流与反馈
+- 欢迎您通过[Github Issues](https://github.com/PaddlePaddle/Paddle/issues)来提交问题、报告与建议
+- QQ群: 696965088 (Paddle-Mobile)
+- [论坛](http://ai.baidu.com/forum/topic/list/168): 欢迎大家在PaddlePaddle论坛分享在使用PaddlePaddle中遇到的问题和经验, 营造良好的论坛氛围
 
 ## Copyright and License
 Paddle-Mobile 提供相对宽松的Apache-2.0开源协议 [Apache-2.0 license](LICENSE)

doc/fluid/advanced_usage/deploy/mobile/mobile_readme_en.md

@@ -50,7 +50,7 @@ At present Paddle-Mobile only supports models trained by Paddle fluid. Models ca
 ### 1. Use Paddle Fluid directly to train
 It is the most reliable method to be recommended
 ### 2. Transform Caffe to Paddle Fluid model
-[https://github.com/PaddlePaddle/models/tree/develop/fluid/image_classification/caffe2fluid](https://github.com/PaddlePaddle/models/tree/develop/fluid/PaddleCV/caffe2fluid)
+[https://github.com/PaddlePaddle/models/tree/develop/PaddleCV/caffe2fluid](https://github.com/PaddlePaddle/models/tree/develop/PaddleCV/caffe2fluid)
 ### 3. ONNX
 ONNX is the acronym of Open Neural Network Exchange. The project is aimed to make a full communication and usage among different neural network development frameworks.
 
@@ -67,9 +67,10 @@ At present，work in support of onnx is also under operation in Baidu. Related t
 Gif as following is the application output of online main part detection of simple search app
 ![ezgif-1-050a733dfb](http://otkwwi4x8.bkt.clouddn.com/2018-07-05-ezgif-1-050a733dfb.gif)-->
 
-## Ask Questions
-
-Welcome to put forward or tackle with our problems. You can post your question in our issue module on github. [Github Issues](https://github.com/PaddlePaddle/paddle-mobile/issues).
+## Communication
+- [Github Issues](https://github.com/PaddlePaddle/Paddle/issues): bug reports, feature requests, install issues, usage issues, etc.
+- QQ discussion group: 696965088 (Paddle-Mobile).
+- [Forums](http://ai.baidu.com/forum/topic/list/168?pageNo=1): discuss implementations, research, etc.
 
 ## Copyright and License
 Paddle-Mobile provides relatively unstrict Apache-2.0 Open source agreement [Apache-2.0 license](LICENSE).