docs: move Release Schedule to changelog

CHANGELOG.en-US.md

@@ -7,6 +7,12 @@ timeline: true
 
 `antd` strictly follows [Semantic Versioning 2.0.0](http://semver.org/).
 
+#### Release Schedule
+
+* Weekly release: patch version at the end of every week for routine bugfix (anytime for urgent bugfix).
+* Monthly release: minor version at the end of every month for new features.
+* Major version release is not included in this schedule for breadking change and new features.
+
 If you want to read change logs before `2.0.0`, please visit [GitHub](https://github.com/ant-design/ant-design/blob/1.x-stable/CHANGELOG.md).
 
 ---

CHANGELOG.zh-CN.md

@@ -7,6 +7,12 @@ timeline: true
 
 `antd` 严格遵循 [Semantic Versioning 2.0.0](http://semver.org/lang/zh-CN/) 语义化版本规范。
 
+#### 发布周期
+
+* patch 版本：每周末会进行日常 bugfix 更新。（如果有紧急的 bugfix，则任何时候都可发布）
+* minor 版本：每月发布一个带有新特性的版本。
+* 大版本号：含有破坏性更新和新特性，不在发布周期内。
+
 如果需要查看 `2.0.0` 之前的更新日志，请移步 [GitHub](https://github.com/ant-design/ant-design/blob/1.x-stable/CHANGELOG.md)。
 
 ---

README-zh_CN.md

@@ -93,11 +93,3 @@ tsconfig.json
 ## 如何贡献
 
 我们欢迎任何形式的贡献，有任何建议或意见您可以进行 [Pull Request](https://github.com/ant-design/ant-design/pulls)，或者给我们 [提问](https://github.com/ant-design/ant-design/issues)。
-
-## 发布周期
-
-遵循 [Semantic Versioning 2.0.0](http://semver.org/lang/zh-CN/) 语义化版本规范。
-
-* patch 版本：每周末会进行日常 bugfix 更新。（如果有紧急的 bugfix，则任何时候都可发布）
-* minor 版本：每月发布一个带有新特性的版本。
-* 大版本号：含有破坏性更新和新特性，不再发布周期内。

README.md

@@ -120,12 +120,3 @@ tsconfig.json
 ## Contributing
 
 We welcome all contributions, please read our [CONTRIBUTING.md](https://github.com/ant-design/ant-design/blob/master/.github/CONTRIBUTING.md) first. You can submit any ideas as [pull requests](https://github.com/ant-design/ant-design/pulls) or as [GitHub issues](https://github.com/ant-design/ant-design/issues). If you'd like to improve code, check out the [Development Instructions](https://github.com/ant-design/ant-design/wiki/Development) and have a good time! :)
-
-## Release Schedule
-
-Follow [Semantic Versioning 2.0.0](http://semver.org/).
-
-* Weekly release: patch version at the end of every week for routine bugfix.
-* Monthly release: minor version at the end of every month for new features.
-* Emergence release: emergence patch anytime if necessary for urgent bugfix.
-* Major version release is not included in this schedule for breadking change and new features.