diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Apache Dubbo Go Implementation.
 Apache License, Version 2.0
 
 ## Code design ##
-Based on dubbo's layered code design (protocol layer,registry layer,cluster layer,config layer and so on),
+Based on dubbo's layered code design (protocol layer,registry layer,cluster layer,config layer and so on), you can achieve your needs by extending these layered interfaces instead of modifying go-for-apache-dubbo's source code. And welcome to contribute your awesome extension.
 
 About detail design please refer to [code layered design](https://github.com/dubbo/go-for-apache-dubbo/wiki/dubbo-go-V2.6-design)
 ## Feature list ##