diff --git a/Contributing-Code.md b/Contributing-Code.md
index 19e1124..6bfda95 100644
--- a/Contributing-Code.md
+++ b/Contributing-Code.md
@@ -1,17 +1,23 @@
 This document describes requirements and best practices for contributing code (Pull Request) to Gogs project.
 
-If you have/find any concern/problem with this document, **DO NOT** create an issue on this repository, instead, please go to [Gitter](https://gitter.im/gogits/gogs) and discuss.
+If you have/find any concern/problem with this document, **DO NOT** create an issue in this repository, instead, please go to [Gitter](https://gitter.im/gogits/gogs) and discuss.
 
-### Those We Do Accept
+### Before You Start
+
+#### Those We Do Accept
 
 1. Typos in template files or code comments.
 2. Bug fixes or feature implementations (be sure to discuss first).
 2. Issues that are labeled as [help wanted](https://github.com/gogits/gogs/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22) (be sure to claim first to prevent two people work on the same thing).
 
-### Those We Do Not Accept
+#### Those We Do Not Accept
 
 1. We do not accept pull requests for locale files (`conf/locale_xx-XX.ini` files), please read the [guide](https://gogs.io/docs/features/i18n), except for `conf/locale_en-US.ini` file.
 
+#### Make A Claim
+
+Write a comment to the corresponding thread to claim you're working on it, so people wouldn't have conflict on what they're working on.
+
 ### Coding Guidelines
 
 1. Please follow the general [code convention](https://github.com/Unknwon/go-code-convention/blob/master/en-US/README.md) for Go.