docs(README): add Godoc badge
diff --git a/README.md b/README.md
index 21449b3..8a9d2de 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
-## RocketMQ Client Go [![Build Status](https://travis-ci.org/apache/rocketmq-client-go.svg?branch=native)](https://travis-ci.org/apache/rocketmq-client-go) [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
-
+## RocketMQ Client Go 
+[![Build Status](https://travis-ci.org/apache/rocketmq-client-go.svg?branch=native)](https://travis-ci.org/apache/rocketmq-client-go) 
+[![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
 [![Go Report Card](https://goreportcard.com/badge/github.com/apache/rocketmq-client-go)](https://goreportcard.com/report/github.com/apache/rocketmq-client-go)
+[![GoDoc](https://img.shields.io/badge/Godoc-reference-blue.svg)](https://godoc.org/github.com/apache/rocketmq-client-go)
 
 ( The alpha version of Apache RocketMQ Go in Pure Go has been released, Welcome have a try! [native version](https://github.com/apache/rocketmq-client-go/tree/native) )