Update Apache 2.0 license link to HTTPS

github_notebooks_readme.rst

@@ -32,7 +32,7 @@ Here is a prototype :file:`make_readme.py` module that provides that automation:
     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
+       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,
@@ -90,7 +90,7 @@ Here is a prototype :file:`make_readme.py` module that provides that automation:
     and The University of British Columbia.
 
     They are licensed under the Apache License, Version 2.0.
-    http://www.apache.org/licenses/LICENSE-2.0
+    https://www.apache.org/licenses/LICENSE-2.0
     Please see the LICENSE file in this repository for details of the license.
     """