Merge pull request #24 from Xreki/update_links

Update the links of documentations in Paddle repo.

README.md

@@ -3,9 +3,9 @@
 Here mainly describes how to deploy PaddlePaddle to the mobile end, as well as some deployment optimization methods and some benchmark.
 
 ## How to build PaddlePaddle for mobile
-- [Build PaddlePaddle for Android](https://github.com/PaddlePaddle/Paddle/blob/develop/doc/howto/cross_compiling/cross_compiling_for_android_cn.md)
-- Build PaddlePaddle for IOS
-- [Build PaddlePaddle for Raspberry Pi3](https://github.com/PaddlePaddle/Paddle/blob/develop/doc/howto/cross_compiling/cross_compiling_for_raspberry_cn.md)
+- Build PaddlePaddle for Android [[Chinese](https://github.com/PaddlePaddle/Paddle/blob/develop/doc/mobile/cross_compiling_for_android_cn.md)] [[English](https://github.com/PaddlePaddle/Paddle/blob/develop/doc/mobile/cross_compiling_for_android_en.md)]
+- Build PaddlePaddle for IOS [[Chinese](https://github.com/PaddlePaddle/Paddle/blob/develop/doc/mobile/cross_compiling_for_ios_cn.md)]
+- Build PaddlePaddle for Raspberry Pi3 [[Chinese](https://github.com/PaddlePaddle/Paddle/blob/develop/doc/mobile/cross_compiling_for_raspberry_cn.md)] [[English](https://github.com/PaddlePaddle/Paddle/blob/develop/doc/mobile/cross_compiling_for_raspberry_en.md)]
 - Build PaddlePaddle for PX2
 - How to build PaddlePaddle mobile inference library with minimum size.
 
@@ -15,7 +15,7 @@ Here mainly describes how to deploy PaddlePaddle to the mobile end, as well as s
 ## Deployment optimization methods
 - [Merge batch normalization before deploying the model to the mobile.](./tools/merge_batch_normalization/README.md)
 - [Compress the model before deploying the model to the mobile.](./tools/rounding/README.md)
-- [Merge model config and parameter files into one file.](./tools/merge_config_paramsters/README.md)
+- [Merge model config and parameter files into one file.](./tools/merge_config_parameters/README.md)
 - How to deploy int8 model in mobile inference with PaddlePaddle.
 
 ## Model compression