添加example链接

README.md

@@ -1,8 +1,7 @@
 # WeChat SDK for Go
 ![Go](https://github.com/silenceper/wechat/workflows/Go/badge.svg?branch=release-2.0)
 [![Go Report Card](https://goreportcard.com/badge/github.com/silenceper/wechat)](https://goreportcard.com/report/github.com/silenceper/wechat)
-[![GoDoc](http://godoc.org/github.com/silenceper/wechat?status.svg)](https://pkg.go.dev/github.com/silenceper/wechat/v2?tab=doc)
-
+[![godoc](https://img.shields.io/badge/godoc-reference-informational)](https://pkg.go.dev/github.com/silenceper/wechat/v2?tab=doc)
 使用Golang开发的微信SDK，简单、易用。
 
 
@@ -44,9 +43,10 @@ server.Send()
 
 ```
 
-## 文档
+## 文档 && 例子
 [Wechat SDK 2.0 文档](http://silenceper.com/wechat)
 
+[Wechat SDK 2.0 例子](https://github.com/gowechat/example)
 
 ## 目录说明
 - officialaccount: 微信公众号API