Merge branch 'develop' of https://github.com/PaddlePaddle/FluidDoc into add-models_io_doc

doc/fluid/api/index_en.rst

@@ -5,6 +5,7 @@ API Reference
 ..  toctree::
     :maxdepth: 1
 
+    api_guides/index.rst
     fluid.rst
     layers.rst
     data_feeder.rst

doc/fluid/beginners_guide/install/Tables.md

@@ -342,7 +342,7 @@ PaddePaddle通过编译时指定路径来实现引用各种BLAS/CUDA/cuDNN库。
 		<td> <a href="https://guest@paddleci.ngrok.io/repository/download/Manylinux1_CpuAvxCp27cp27mu/.lastSuccessful/paddlepaddle-latest-cp27-cp27m-linux_x86_64.whl">	paddlepaddle-latest-cp27-cp27mu-linux_x86_64.whl</a></td>
 	</tr>
 	<tr>
-		<td> cpu_avx_mkl </td>
+		<td> cpu_avx_openblas </td>
 		<td> <a href="https://guest@paddleci.ngrok.io/repository/download/Manylinux1_CpuAvxOpenblas/.lastSuccessful/paddlepaddle-latest-cp27-cp27mu-linux_x86_64.whl">	paddlepaddle-latest-cp27-cp27mu-linux_x86_64.whl</a></td>
 		<td> <a href="https://guest@paddleci.ngrok.io/repository/download/Manylinux1_CpuAvxOpenblas/.lastSuccessful/paddlepaddle-latest-cp27-cp27m-linux_x86_64.whl">	paddlepaddle-latest-cp27-cp27m-linux_x86_64.whl</a></td>
 	</tr>

doc/fluid/beginners_guide/install/install_MacOS.md

@@ -38,10 +38,10 @@
 
 其次，您的计算机需要满足以下要求：    
 
-> **请不要使用MacOS中自带python**，我们强烈建议您使用[Homebrew](https://brew.sh)安装python（对于**Python3**请使用python[官方下载](https://www.python.org/downloads/mac-osx/)python3.5.x）, pip）
+> **请不要使用MacOS中自带python**，对于**Python2**，建议您使用[Homebrew](https://brew.sh)或[Python.org](https://www.python.org/ftp/python/2.7.15/python-2.7.15-macosx10.9.pkg)提供的python2.7.15；对于**Python3**，请使用[Python.org](https://www.python.org/downloads/mac-osx/)提供的python3.5.x。
 	
-		For python2: brew install python@2
-		For python3: 请使用Python官方下载的python3.5.x
+		For python2: brew install python@2 或 使用Python官方下载的python2.7.15
+		For python3: 使用Python官方下载的python3.5.x
 
 *	Python2.7.x，Pip >= 9.0.1            
 *  Python3.5.x，Pip3 >= 9.0.1