fix readme

README.md

@@ -1,7 +1,7 @@
 # benchdiff
 
-[![godoc](https://godoc.org/github.com/willabides/benchdiff?status.svg)](https://godoc.org/github.com/willabides/benchdiff)
-[![ci](https://github.com/WillAbides/benchdiff/workflows/ci/badge.svg?branch=main&event=push)](https://github.com/WillAbides/benchdiff/actions?query=workflow%3Aci+branch%3Amaster+event%3Apush)
+[![Go Reference](https://pkg.go.dev/badge/github.com/willabides/benchdiff.svg)](https://pkg.go.dev/github.com/willabides/benchdiff)
+[![ci](https://github.com/WillAbides/benchdiff/workflows/ci/badge.svg?branch=main&event=push)](https://github.com/WillAbides/benchdiff/actions?query=workflow%3Aci+branch%3Amain+event%3Apush)
 
 Benchdiff runs go benchmarks on your current git worktree and a base ref then uses benchstat to show
 the delta.
@@ -114,7 +114,7 @@ test {{ .Packages }} -run '^$'
 
 Add a [bindown](https://github.com/willabides/bindown) dependency:
 
-``` shell
+```
 $ bindown template-source add benchdiff https://raw.githubusercontent.com/WillAbides/benchdiff/main/bindown.yml
 $ bindown dependency add benchdiff benchdiff#benchdiff
 Please enter a value for required variable "version":	<latest version>