How does one delete un-needed projects? Deleted the souse code and directories , but the project titles are still listed and are located ~/.trash. .trash is empty.

I am trying to link xcode to link to my git hub repository. I find my project name on github, but nothing is committed. The xcode commit stuff errors out and tells me I need to enter a user name. In the set up form I entered my github username. But that doesn't work. Is there aa another place I am suppose to enter a name? There does not seem to be a place to enter the commit message. Is that required on Xcode. Is there an article on how to setup github with xcode?