Minor README.rst tweaks

Change-Id: If4e7489d270cd602257b726b23755c30d0fc40a5

README.rst

@@ -10,7 +10,7 @@ Origin
 Most of the additional style guidelines that OpenStack has taken on came from
 the Google Python Style Guide.
 
-  http://google-styleguide.googlecode.com/svn/trunk/pyguide.html
+- http://google-styleguide.googlecode.com/svn/trunk/pyguide.html
 
 Since then, a few more OpenStack specific ones have been added or modified.
 
@@ -30,7 +30,7 @@ Adding additional checks
 
 Each check is a pep8 plugin so read
 
-   https://github.com/jcrocholl/pep8/blob/master/docs/developer.rst#contribute
+- https://github.com/jcrocholl/pep8/blob/master/docs/developer.rst#contribute
 
 Requirements
 ------------
@@ -54,7 +54,9 @@ to run in two different ways. They can be registered individually, or with
 a factory function.
 
 For individual registration, put a comma separated list of pep8 compatible
-check functions into the hacking section of tox.ini. Like
+check functions into the hacking section of tox.ini. E.g.:
+
+.. code-block:: ini
 
   [hacking]
   local-check = nova.tests.hacking.bad_code_is_terrible
@@ -64,5 +66,7 @@ at registration time and will be passed the registration function. The callable
 should expect to call the passed in function on everything if wants to
 register. Such as:
 
+.. code-block:: ini
+
   [hacking]
   local-check-factory = nova.tests.hacking.factory