diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -28,6 +28,10 @@ Run it! All dependencies will be resovled automatically by biicode! Amazing, isn
 
 The best way to get help with Nana library is by visiting http://nanapro.org/help.htm
 
+## Sending a Pull Request ?
+
+This project is encourage you to contribute it through sending a pull request! There is a simple rule, please **don't** directly commit your contributions to the **master** branch. According to your commits, please choose the **hotfixes** branch or the **develop** branch. Thank you!
+
 ## Introduction to the Repository
 
 There are two main branches with an infinite lifetime: