diff --git a/doc/howto/contribute_to_paddle_cn.md b/doc/howto/dev/contribute_to_paddle_cn.md
similarity index 100%
rename from doc/howto/contribute_to_paddle_cn.md
rename to doc/howto/dev/contribute_to_paddle_cn.md
diff --git a/doc/howto/index_cn.rst b/doc/howto/index_cn.rst
index 618f0c6e722fc7f9fde7cadde03857241a218a83..e03138723e4df951b5fb1bd28f98a33e679b454a 100644
--- a/doc/howto/index_cn.rst
+++ b/doc/howto/index_cn.rst
@@ -18,6 +18,7 @@
   :maxdepth: 1
 
   dev/write_docs_cn.rst
+  dev/contribute_to_paddle_cn.md
 
 模型配置
 --------
@@ -32,3 +33,5 @@
 
 ..  toctree::
   :maxdepth: 1
+
+  optimization/gpu_profiling_cn.rst
diff --git a/doc/howto/index_en.rst b/doc/howto/index_en.rst
index 1000d956a724ca514f5c8ed82c5a93bad6f2c664..983dc743eb453a0210bc5fb3c7e4525fa838d428 100644
--- a/doc/howto/index_en.rst
+++ b/doc/howto/index_en.rst
@@ -33,4 +33,4 @@ Optimization
 ..  toctree::
   :maxdepth: 1
 
-  optimization/index_en.rst
+  optimization/gpu_profiling_en.rst
diff --git a/doc/howto/optimization/gpu_profiling_cn.rst b/doc/howto/optimization/gpu_profiling_cn.rst
index d3def92c4b37aacde6177c9d7013f2dbd00f371a..e2b0b0396e0034b01ed2c5081effdd3bcabf31ae 100644
--- a/doc/howto/optimization/gpu_profiling_cn.rst
+++ b/doc/howto/optimization/gpu_profiling_cn.rst
@@ -1,5 +1,8 @@
-PaddlePaddle 性能分析与调优
-=====================================
+==================
+GPU性能分析与调优
+==================
+
+..  contents::
 
 此教程将向您分步介绍如何使用内置的定时工具、 **nvprof** 或 **nvvp** 来运行性能分析和调优。
 
diff --git a/doc/howto/optimization/gpu_profiling_en.rst b/doc/howto/optimization/gpu_profiling_en.rst
index a54db6a3c20ac23510c6995b24b889a447fb285e..ed208ceaf7af0c5aab88fd4fcb18fa96b8c9ff38 100644
--- a/doc/howto/optimization/gpu_profiling_en.rst
+++ b/doc/howto/optimization/gpu_profiling_en.rst
@@ -1,5 +1,8 @@
-Profiling on PaddlePaddle
-=========================
+====================
+Tune GPU Performance 
+====================
+
+..  contents::
 
 This tutorial will guide you step-by-step through how to conduct profiling and performance tuning using built-in timer, **nvprof** and **nvvp**.
 
diff --git a/doc/howto/optimization/index_en.rst b/doc/howto/optimization/index_en.rst
deleted file mode 100644
index 84804fc9af020594e072cee11e9229bbdfae5ce3..0000000000000000000000000000000000000000
--- a/doc/howto/optimization/index_en.rst
+++ /dev/null
@@ -1,7 +0,0 @@
-Tune GPU Performance
-====================
-
-.. toctree::
-  :maxdepth: 3
-
-  gpu_profiling_en.rst