message: [Doc] fix weapp link
diff: @@ -33,7 +33,7 @@ Modern browsers and Android 4.0+, iOS 6+.
  * [Feedback](https://github.com/youzan/vant/issues)
  * [Changelog](#/en-US/changelog)
  -* [Weapp UI](https://github.com/youzan/zanui-weapp)
  +* [Weapp UI](https://github.com/youzan/vant-weapp)
  * [React UI](https://youzan.github.io/zent)
  * [Vant Demo](https://github.com/youzan/vant-demo)
  