Call out the Go Docs explicitly

Sophie Wigmore · ForestEckhardt · commit 0d429c066d0b · 2021-06-16T17:49:10.000-04:00
diff --git a/README.md b/README.md
@@ -1,5 +1,6 @@
 # packit
 
+Checkout the Go Docs for details on how to use the sub-packages within packit:
 [![GoDoc](https://img.shields.io/badge/pkg.go.dev-doc-blue)](http://pkg.go.dev/github.com/paketo-buildpacks/packit)
 
 Package packit provides primitives for implementing a Cloud Native Buildpack
