Optimize the link address

Use https instead of http to ensure the safety

Change-Id: Ib66b03d7fd5116bd2ccb793e71e9e136a0541c0a

CONTRIBUTING.rst

@@ -1,14 +1,14 @@
 If you would like to contribute to the development of OpenStack, you must
 follow the steps in this page:
 
-   http://docs.openstack.org/infra/manual/developers.html
+   https://docs.openstack.org/infra/manual/developers.html
 
 If you already have a good understanding of how the system works and your
 OpenStack accounts are set up, you can skip to the development workflow
 section of this documentation to learn how changes to OpenStack should be
 submitted for review via the Gerrit tool:
 
-   http://docs.openstack.org/infra/manual/developers.html#development-workflow
+   https://docs.openstack.org/infra/manual/developers.html#development-workflow
 
 Pull requests submitted through GitHub will be ignored.
 

HACKING.rst

@@ -1,4 +1,4 @@
 Mogan Style Commandments
-===============================================
+========================
 
-Read the OpenStack Style Commandments http://docs.openstack.org/developer/hacking/
+Read the OpenStack Style Commandments https://docs.openstack.org/developer/hacking/

README.rst

@@ -14,16 +14,16 @@ Project Resources
 
 * Free software: Apache license
 * Documentation: http://111.20.68.219:7950/docs/
-* Source: http://git.openstack.org/cgit/openstack/mogan
-* Bugs: http://bugs.launchpad.net/mogan
+* Source: https://git.openstack.org/cgit/openstack/mogan
+* Bugs: https://bugs.launchpad.net/mogan
 * Wiki: https://wiki.openstack.org/wiki/Mogan
 * APIs: http://111.20.68.219:7950/v1/
 
 Project status, bugs and BPs are tracked on Launchpad:
 
-  http://launchpad.net/mogan
+  https://launchpad.net/mogan
 
 Anyone wishing to contribute to an OpenStack project should
 find a good reference here:
 
-  http://docs.openstack.org/infra/manual/developers.html
+  https://docs.openstack.org/infra/manual/developers.html