Currently SVN is the only type of Source Code repository permitted in the Source Code section of the site navigation editor. Please add the following fields

Label: Browse git
Type: http://
This is the equivalent to ViewVC or Fisheye. It let's the visitor browse the repository using a web browser.

Label: Developer git
Type: ssh (example: git@github.com:arquillian/arquillian.git)
This is the developer's checkout URL, though it's primarily for the project owner. Most developers will fork the project to get read-write access to a repository.

Label: Read-only git
Type: git://
This is the URL passed to git to clone (checkout) the project to pull down the source.

Label: git organization
Type: http://
This is the collection of all git repositories related to a project. It may include sandbox repositories and other related forks.