Some doc changes.

You could have also added the --from-code at the app creation but I left it here so people could get a clearer sense of what they are doing. 

rhc app create djangoexample diy-0.1 postgresql-8.4 --from-code https://github.com/zemanel/openshift-diy-django-example.git

I also can not get it to run using the instructions. I get a 503 when I follow your instructions. Was there something I was supposed to do after the git push to make it run?