Fix the old or invalid doc links

The urls in docs are old or invalid.
Replace them with the right ones for the docs according to
the official OpenStack websites.

Change-Id: Ia264bfb5e9e1a025b0250b139c84c730df05fe9b

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.
 

README.rst

@@ -7,6 +7,6 @@ Tempest plugin for Trove Project
 It contains tempest tests for Trove project.
 
 * Free software: Apache license
-* Documentation: https://docs.openstack.org/developer/trove
+* Documentation: https://docs.openstack.org/trove/latest/
 * Source: https://git.openstack.org/cgit/openstack/trove-tempest-plugin
 * Bugs: https://bugs.launchpad.net/trove

setup.cfg

@@ -5,7 +5,7 @@ description-file =
     README.rst
 author = OpenStack
 author-email = openstack-dev@lists.openstack.org
-home-page = http://www.openstack.org/
+home-page = https://git.openstack.org/cgit/openstack/trove-tempest-plugin
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology