Setting up the Github site is discussed on this page.
Creating A Git Repository
File -> New -> Other -> Git -> Git Repository
Then click on Next
Using Git Repository
To use Git repository right click on project
|Select Team → Share|
|Select Git (as opposed to CVS)|
Select Team → Add to Index, on the project node to add all files to version control.
Select "Team" -> "Commit", to commit your changes to the local Git repository.
The Push command in file->team was grayed out so I opened a 'Git Repositories' widow and found a push command there.