Minor formatting change.

README.rst

@@ -30,15 +30,15 @@ This is what ``ghp-import`` was written for.
 .. _`github-tools`: http://dinoboff.github.com/github-tools/
 
 Big Fat Warning
-===============
+---------------
 
 This will **DESTROY** your gh-pages branch. If you love it, you'll want to take
 backups before playing with this. This script assumes that gh-pages is 100%
 derivative. You should never edit files in your gh-pages branch by hand if
 you're using this script because you will lose your work.
 
 Usage
-=====
+-----
 
 ::
 
@@ -59,7 +59,7 @@ GitHub. By default it'll just run ``git push origin gh-pages``. You can specify
 a different remote using the ``-r`` flag.
 
 License
-=======
+-------
 
 ghp-import is distributed under the Tumbolia Public License. See the LICENSE
 file for more information.