Add missing Copyright

tools/docs/generateModuleGraph.sh

@@ -1,5 +1,21 @@
 #!/usr/bin/env bash
 
+#
+# Copyright (c) 2022 New Vector Ltd
+#
+# 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
+#
+#     http://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.
+#
+
 ## Dependency graph https://github.com/savvasdalkitsis/module-dependency-graph
 dotPath=`pwd`/docs/images/module_graph.dot
 pngPath=`pwd`/docs/images/module_graph.png