add file extensions in doc/

Author: luotao1

doc/about/index.rst doc/about/index_en.rstdoc/about/index.rst renamed to doc/about/index_en.rst

@@ -32,11 +32,3 @@ Each line of train.list and test.list is an absolute or relative path (relative
 to the PaddePaddle program runtime) of data file. Fascinatingly more, each line
 can also be a HDFS file path or a SQL connection string. As long as the user
 assures how to access each file in DataProvider.
-
-Please refer to the following articles for more information about the detail
-usages of DataProvider and how to implement a new DataProvider,
-
-..  toctree::
-
-    pydataprovider2.rst
-    write_new_dataprovider.rst

doc/api/data_provider/index.rst doc/api/data_provider/index_en.rstdoc/api/data_provider/index.rst renamed to doc/api/data_provider/index_en.rst

@@ -7,16 +7,15 @@ DataProvider API
 ..  toctree::
   :maxdepth: 1
 
-  data_provider/index.rst
-  data_provider/pydataprovider2.rst
+  data_provider/index_en.rst
+  data_provider/pydataprovider2_en.rst
 
 Model Config API
 ----------------
 
 ..  toctree::
   :maxdepth: 1
 
-  trainer_config_helpers/index.rst
   trainer_config_helpers/optimizers.rst
   trainer_config_helpers/data_sources.rst
   trainer_config_helpers/layers.rst
@@ -33,4 +32,4 @@ Applications API
 ..  toctree::
   :maxdepth: 1
 
-  predict/swig_py_paddle_en.rst
+  predict/swig_py_paddle_en.rst

doc/api/data_provider/pydataprovider2.rst …api/data_provider/pydataprovider2_en.rstdoc/api/data_provider/pydataprovider2.rst renamed to doc/api/data_provider/pydataprovider2_en.rst doc/api/data_provider/pydataprovider2.rst renamed to doc/api/data_provider/pydataprovider2_en.rst

@@ -6,10 +6,9 @@ Install PaddlePaddle
 
 ..  toctree::
     :maxdepth: 1
-    :glob:
 
-    docker_install.rst
-    ubuntu_install.rst
+    docker_install_en.rst
+    ubuntu_install_en.rst
 
 Build from Source
 -----------------
@@ -20,6 +19,5 @@ Build from Source
 
 ..  toctree::
     :maxdepth: 1
-    :glob:
 
-    build_from_source.md
+    build_from_source_en.md