Merge pull request #103 from zalando/fix/go-ref-badge

fix: pkg go ref badge

README.md

@@ -3,7 +3,7 @@
 [![Go Report
 Card](https://goreportcard.com/badge/zalando/gin-oauth2)](https://goreportcard.com/report/zalando/gin-oauth2)
 [![Build Status](https://github.com/zalando/gin-oauth2/actions/workflows/master.yaml/badge.svg)](https://github.com/zalando/gin-oauth2/actions/workflows/master.yaml)
-[![GoDoc](https://pkg.go.dev/github.com/zalando/gin-oauth2?status.svg)](https://pkg.go.dev/github.com/zalando/gin-oauth2)
+[![GoDoc](https://pkg.go.dev/badge/github.com/zalando/gin-oauth2.svg)](https://pkg.go.dev/github.com/zalando/gin-oauth2)
 
 
 Gin-OAuth2 is specially made for [Gin Framework](https://github.com/gin-gonic/gin)