Typical problem, you have just gained your full project permissions role in Drupal.org, and you make your first mess... you have promoted your so loved first project without changing the Short project name.
Well, you have a problem, but not too big. Drupal.org will not allow you to rename your Short project name, so you will have to create a new one if you don't want to have an ugly url like that: https://drupal.org/project/2062343
Fortunately git can help. You will simply have to: