Update docs

Author: wgzhao

README.md

@@ -17,7 +17,7 @@ English | [简体中文](README_zh.md)
 
 ## current stable version
 
-`3.2.3`
+`3.2.4`
 
 Note: As of `3.2.1`, the package class names have been changed and are therefore no longer compatible with `3.1.x` versions.
 

README_zh.md

@@ -17,7 +17,7 @@
 
 ## 当前稳定版
 
-`3.2.3`
+`3.2.4`
 
 注： 从 `3.2.1` 版本开始，包类名已经更改，因此不再兼容 `3.1.x` 版本