Most of the submission process is covered in the About PAUSE page. Have you read this? Specifically what more do you need to know than is covered in this document?

The fact that you have chosen to use git as your version control system should not be relevant. Once you've built the distribution tarball and tested it yourself just follow the submission instructions which apply regardless of the repository.

By the way, your last 2 posts have come in as Anonymous. It would probably help you to keep track of responses, etc. if you were to login.