Update the documentation link

This patch is proposed according to the Direction 10 of doc
migration(https://etherpad.openstack.org/p/doc-migration-tracking).

Change-Id: I6904da7a5f2bd12cf44d047e4b865389e44fb56b

CONTRIBUTING.rst

@@ -5,13 +5,13 @@ How to contribute
 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
 
 Once those steps have been completed, changes to OpenStack
 should be submitted for review via the Gerrit tool, following
 the workflow documented at:
 
-   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

@@ -2,8 +2,8 @@
 Team and repository tags
 ========================
 
-.. image:: http://governance.openstack.org/badges/oslo.db.svg
-    :target: http://governance.openstack.org/reference/tags/index.html
+.. image:: https://governance.openstack.org/badges/oslo.db.svg
+    :target: https://governance.openstack.org/tc/reference/tags/index.html
 
 .. Change things from this point on
 

oslo_db/_i18n.py

@@ -12,7 +12,7 @@
 
 """oslo.i18n integration module.
 
-See http://docs.openstack.org/developer/oslo.i18n/usage.html .
+See https://docs.openstack.org/oslo.i18n/latest/user/index.html .
 
 """