add yaml filename to example yaml

Signed-off-by: Christian Richter <crichter@owncloud.com>

docs/helpers/example-config-generator.go.tmpl

@@ -27,7 +27,7 @@ func main() {
 			if err != nil {
 				log.Fatalf("Marshalling yaml for pkg0 failed: %s\n", err)
 			}
-			return "# Autogenerated\n" + string(yml)
+			return fmt.Sprintf("# Autogenerated\n# Filename: %s-config-example.yaml\n\n%s", replacer.Replace("{{ $value }}"),string(yml))
 		}(),
 		{{- end}}
 	}