docs: add naming rules (#16276)

* add naming rules

* one more space

docs/react/contributing.en-US.md

@@ -28,6 +28,8 @@ Before you reporting a bug, please make sure you've searched exists issues, and
 
 If you intend to change the public API or introduce new feature, we also recommend use our [issue helper](http://new-issue.ant.design) to create a feature request issue.
 
+If you want to help on new API, please ref [API Naming Rules](https://github.com/ant-design/ant-design/wiki/API-Naming-rules) to name it.
+
 ## Your First Pull Request
 
 Working on your first Pull Request? You can learn how from this free video series:

docs/react/contributing.zh-CN.md

@@ -28,6 +28,8 @@ toc: false
 
 如果你有改进我们的 API 或者新增功能的想法，我们同样推荐你使用我们提供的 [issue 小助手](http://new-issue.ant.design) 来新建一个添加新功能的 issue。
 
+如果你希望协助开发新的 API，请参考 [API 规范](https://github.com/ant-design/ant-design/wiki/API-Naming-rules) 进行命名。
+
 ## 第一次贡献
 
 如果你还不清楚怎么在 GitHub 上提 Pull Request ，可以阅读下面这篇文章来学习：