README: add a godoc badge

If someone is new to the repository, it might not be obvious that there is a Go API available as a library. The README does later refer to the format library, but also add it to the top as a badge like any other library.
mvdan · May 16, 2022 · d4a82e8 · d4a82e8
1 parent 1f45ac0
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Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -1,5 +1,7 @@
 # gofumpt
 
+[![Go Reference](https://pkg.go.dev/badge/mvdan.cc/gofumpt/format.svg)](https://pkg.go.dev/mvdan.cc/gofumpt/format)
+
 	go install mvdan.cc/gofumpt@latest
 
 Enforce a stricter format than `gofmt`, while being backwards compatible.