Add license to code files (#12)

* Update openapi.yaml

* Update openapi.yaml

api/openapi.yaml

@@ -1,3 +1,21 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# Copyright (c) FullCtl and affiliates.
+# Copyright (c) Cloudflare and affiliates.
+# Copyright (c) Amazon.com Inc. or its affiliates.
+# Copyright (c) Google and affiliates.
+
+# 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.
+
 openapi: 3.0.3
 info:
   title: AutoPeer