Update README.md

README.md

@@ -29,6 +29,7 @@ kotlin demo :[BRVAH_kotlin](https://github.com/AllenCoder/BRVAH_kotlin)
 -keepclassmembers  class **$** extends com.chad.library.adapter.base.BaseViewHolder {
      <init>(...);
 }
+-keepattributes InnerClasses
 ```
 
 # Extension library