chore: add readme

Author: jferrl

README.md

@@ -1,3 +1,8 @@
 # go-githubauth
 
+[![GoDoc](https://img.shields.io/static/v1?label=godoc&message=reference&color=blue)](https://pkg.go.dev/github.com/jferrl/go-githubauth)
+[![Test Status](https://github.com/jferrl/go-githubauth/workflows/tests/badge.svg)](https://github.com/jferrl/go-githubauth/actions?query=workflow%3Atests)
+[![codecov](https://codecov.io/gh/jferrl/go-githubauth/branch/main/graph/badge.svg?token=68I4BZF235)](https://codecov.io/gh/jferrl/go-githubauth)
+[![Go Report Card](https://goreportcard.com/badge/github.com/jferrl/go-githubauth)](https://goreportcard.com/report/github.com/jferrl/go-githubauth)
+
 Go library that contains Github OAuth methods