add doc build files

Signed-off-by: weichen <niweichen@chinamobile.com>
Change-Id: I96fbdd728d71c54d8e2f32f561280a4678e63ef7
diff --git a/docs/developer-guide.rst b/docs/developer-guide.rst
index 4707804..0d1f6e0 100644
--- a/docs/developer-guide.rst
+++ b/docs/developer-guide.rst
@@ -1,13 +1,12 @@
 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
 .. http://creativecommons.org/licenses/by/4.0
 
-.. contents::
-   :depth: 3
-   :local:
-
 Developer-Guide
 ===============
 
+.. contents::
+   :depth: 3
+   :local:
 
 .. note:
 ..   * This section is used to describe what a contributor needs to know in order to work on the componenta