Then push that to github.
Then retrieve the files from github onto my desktop.
Then fix the readme on the desktop, push that back to github, and pull the changes down onto my laptop.
So I can now edit files on either machine, and move them back and forth via github.
Next up, I guess, is working out how to make a branch so that I can do temp stuff back and forth without breaking the head...
Original post on Dreamwidth - there are comments there.