Added a friendly sentence to the README, to make sure GitHub committing is working

README

 Django is a high-level Python Web framework that encourages rapid development
-and clean, pragmatic design.
+and clean, pragmatic design. Thanks for checking it out.
 
 All documentation is in the "docs" directory and online at
 http://docs.djangoproject.com/en/dev/. If you're just getting started, here's