[Potlatch-dev] Git starter?

[Steve Bennett]

Hi all,
  So I'd like to get back into some potlatch development. Shortly
before moving house I tried to follow the Git instructions, but
something went wrong. Can someone give me a quick list of steps? I
gather I need to set up an account on git hub, fork someone's code
base (whose?), check out using git, make changes, commit using
git...then how do I publish the changes somewhere useful?

Thanks,
Steve