If you have started an app with bort to save some time, you will have an issue pushing it to you repo on github.
The issue is that bort already has an origin specified in my_app/.git/config
To fix it, you need to open the config file (if using textmate) by:
cd /.git
mate config
Then in the config file, delete the remote origin lines of code, should be 3.
Then in the terminal:
git remote add origin git@github.com:user/repo_name.git
Once the origin is added, you can push it up by doing:
git push origin master