Fix OpenStack Licensing

[H102 H103] Contributed Source code should be licensed under the
Apache 2.0 license.

Change-Id: I3b5920908db7b52dc838a1606b4a214a06e14322

doc/source/conf.py

@@ -1,5 +1,16 @@
 # -*- coding: utf-8 -*-
+#  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.
+
 import os
 
 project = 'python-muranoclient'