diff --git a/documentation/source/definitions.rst b/documentation/source/definitions.rst
new file mode 100644
index 0000000000000000000000000000000000000000..b8fc6ca76023ab339e27a59a7e52164a817152e4
--- /dev/null
+++ b/documentation/source/definitions.rst
@@ -0,0 +1,4 @@
+.. |main_project_name| replace:: OpenHarmony
+.. |main_project_name_bold| replace:: **openharmony**
+.. |main_project_tag| replace:: openharmony
+
diff --git a/documentation/source/index.rst b/documentation/source/index.rst
index 7317b14e60803b012465bed3a59469900b59caed..98580606f610c2f77a57bbc7229dc8545b1625b7 100644
--- a/documentation/source/index.rst
+++ b/documentation/source/index.rst
@@ -1,4 +1,6 @@
-Welcome to Harmony-OS documentation!
+.. include:: definitions.rst
+
+Welcome to |main_project_name| documentation!
 ======================================
 
 .. toctree::
diff --git a/documentation/source/readme/Readme-EN.rst b/documentation/source/readme/Readme-EN.rst
index 382c117b9d79beccb395e943e870170172fe8b01..4321cf35954fe9bb8f72bdb1d4a50c68cbf2a645 100644
--- a/documentation/source/readme/Readme-EN.rst
+++ b/documentation/source/readme/Readme-EN.rst
@@ -6,8 +6,11 @@ Contributing Documents
    
    Code of Conduct
    Communication in Community
+   Contribution Process
    Contributing to the Code
+   C++ Coding Style Guide
+   JavaScript Coding Style Guide
    Contributing to the Documentation
-   Contribution Process
    reStructuredText Basics
+   FAQs