Update comment in main.go

Author: mmontes11

main.go

@@ -1,8 +1,7 @@
 package main
 
-func main() {
-	// See:
-	// - cmd/controller/main.go
-	// - https://github.com/kubernetes-sigs/kubebuilder/issues/932
-	// This main.go is required by kubebuilder to scaffold APIs and controllers.
-}
+// This main.go is required by kubebuilder go.kubebuilder.io/v3 layout to scaffold APIs and controllers.
+// See:
+// - cmd/controller/main.go
+// - https://github.com/kubernetes-sigs/kubebuilder/issues/932
+func main() {}