Diagrams (You can Borrow Images!)

[nelsonic]

There are quite a few decent git tutorials (some of which you have linked to) but you can also, borrow their images e.g:

from: http://blogs.atlassian.com/2013/05/stash-git-forking-development-workflow/

Provided you give the original authors credit. (I would also drop them a quick email requesting - retrospective - permission and include a Screenshot of the email you send in the GitHub issue so you can refer back to it in your commit message.)

Using images makes it way easier to understand.

[iteles]

+1 for this, I would have found git difficult to grasp without little diagrams!