Readme.md: add GolangCI badge
Change-Id: I210953040a10438f1eaf030461ea46ae206b5b4e
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/2951
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/README.md b/README.md
index f23c48f..b33ec3c 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@
[](https://godoc.org/cuelang.org/go)
[](https://github.com/cuelang/cue/actions)
[](https://goreportcard.com/report/github.com/cuelang/cue)
+[](https://golangci.com/r/github.com/cuelang/cue)
[](https://golang.org/dl/)
[]()