Update and optimize documentation links

1. Update the dead and outdated links
2. Optimize (e.g. http -> https)

Change-Id: I2ca308e9e14929aecf595f431f819cac7a365602

README.rst

@@ -2,8 +2,8 @@
 Team and repository tags
 ========================
 
-.. image:: https://governance.openstack.org/badges/senlin.svg
+.. image:: https://governance.openstack.org/tc/badges/senlin.svg
-    :target: https://governance.openstack.org/reference/tags/index.html
+    :target: https://governance.openstack.org/tc/reference/tags/index.html
 
 .. Change things from this point on
 
@@ -82,4 +82,4 @@ as the mailinglist. Please use tag ``[Senlin]`` in the subject for new
 threads.
 
 
-.. _Freenode: http://freenode.net/
+.. _Freenode: https://freenode.net/

doc/source/scenarios/autoscaling_heat.rst

@@ -248,4 +248,4 @@ The steps and samples introduced in this tutorial can also work
 well together with composition of ceilometer, Aodh, and Gnocchi
 without any change.
 
-.. _heat template: https://git.openstack.org/cgit/openstack/senlin/plain/doc/source/user/scenarios/ex_lbas.yaml
+.. _heat template: https://git.openstack.org/cgit/openstack/senlin/tree/doc/source/scenarios/scenarios/ex_lbas.yaml

doc/specs/template.rst

@@ -54,7 +54,7 @@ Some notes about using this template:
 * Please do not delete any of the *sections* in this template.  If you have
   nothing to say for a whole section, just write: None
 
-* For help with syntax, see http://sphinx-doc.org/rest.html
+* For help with syntax, see http://www.sphinx-doc.org/en/stable/rest.html
 
 * To test out your formatting, build the docs using tox and see the generated
   HTML file in doc/build/html/specs/<path_of_your_file>

rally-jobs/README.rst

@@ -8,4 +8,4 @@ Structure:
   or `/opt/rally/plugins` to make them work if test is done locally.
 
 Please find more information about rally plugins at the following link:
- - https://rally.readthedocs.org/en/latest/plugins.html
+ - https://rally.readthedocs.io/en/latest/plugins/index.html