Not many people know that the github wiki is actually backed by a separate "hidden" repo, and can be accessed by adding .wiki to the repo url, e.g. <a href="https://github.com/lionleaf/dwitter.wiki.git" rel="nofollow">https://github.com/lionleaf/dwitter.wiki.git
Apparently it can even do CI stuff. Still wouldn't recommend it though, for the other reasons outlined in TFA and this thread.
I seem to recall that GHE allowed you at one point to point a Wiki to a /docs or /docs/wiki subdirectory. I still don't know why that never became a public GitHub.com feature. Sure it is technically redundant with the file browser if you know how to use the view controls and don't mind the UI sprawl of the file browser, but I still think it would be a good feature.
sigvef · · focus · HN ↗
Apparently it can even do CI stuff. Still wouldn't recommend it though, for the other reasons outlined in TFA and this thread.
WorldMaker · · focus · HN ↗