Replace godoc badge with pkg.go.dev badge

README.md

@@ -2,7 +2,7 @@
 
 ![GitHub Workflow Status](https://img.shields.io/github/workflow/status/dexidp/dex/CI?style=flat-square)
 [![Go Report Card](https://goreportcard.com/badge/github.com/dexidp/dex?style=flat-square)](https://goreportcard.com/report/github.com/dexidp/dex)
-[![GoDoc](http://img.shields.io/badge/godoc-reference-5272B4.svg?style=flat-square)](https://godoc.org/github.com/dexidp/dex)
+[![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/mod/github.com/dexidp/dex)
 
 ![logo](Documentation/logos/dex-horizontal-color.png)