更新readme.md

Author: jerbe

README.md

@@ -5,7 +5,8 @@
 ![](https://img.shields.io/github/stars/jerbe/jcache?color=yellow)
 ![](https://img.shields.io/github/forks/jerbe/jcache?color=orange)
 ![](https://img.shields.io/github/license/jerbe/jcache?color=ff69b4)
-![](https://img.shields.io/github/languages/count/jerbe/jcache)
+![](https://img.shields.io/badge/language-go-blue)
+[![](https://img.shields.io/badge/doc-go-blue)](https://pkg.go.dev/github.com/jerbe/jcache@v1.1.5)
 ![](https://img.shields.io/github/languages/code-size/jerbe/jcache?color=blueviolet)
 
 ## 项目由来