add antd-mobile @ant-design to UI Frameworks > Mobile

Approved by
 - @kachkaev
 - @yiminghe
 - @brillout (description should be in English)

Author: devarchy-bot

readme.md

@@ -646,6 +646,7 @@
  - [onsenui](https://github.com/OnsenUI/OnsenUI) - Hybrid Mobile App UI Framework for iOS and Material Design with Angular and React Components.
  - [reactionic](https://github.com/reactionic/reactionic) - React Ionic.
  - [touchstonejs](https://github.com/touchstonejs/touchstonejs) - Mobile App Framework powered by React.
+ - [antd-mobile](https://github.com/ant-design/ant-design-mobile) - A configurable Mobile UI.
 
 
 ### Component Collections