Update README.md

binarywang · web-flow · commit 3d50561bc075 · 2019-06-03T14:19:47.000+08:00
diff --git a/README.md b/README.md
@@ -149,3 +149,7 @@
 1. [charmingoh (Charming)](http://github.com/charmingoh)
 
 </details>
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+### GitHub Stargazers over time
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+[![Stargazers over time](https://starchart.cc/Wechat-Group/WxJava.svg)](https://starchart.cc/Wechat-Group/WxJava)     
