Note that the person who replied is not the person who owned the repo.
Either this is a case of Put the joke into air ten feet of north of me. Verify the result. or there was an issue with the repo.
If I was doing this I'd be looking at making a real repo with a magic string in its README.md - because there's a big difference between HTTP 200 on / for github.com, and everything working correctly so that magic string displays.
