Update Code.js

solutions/ooo-chat-app/Code.js

@@ -1,3 +1,16 @@
+/*
+Copyright 2022 Google LLC
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    https://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 /**
  * Responds to an ADDED_TO_SPACE event in Chat.
  * @param {object} event the event object from Chat