I came across this post on the GitHub blog: GitHub in your language, but I can't seem to find the option to use the GitHub website in another language. The links in the blog post that append a GET parameter to the URL seem to do nothing apart from that, and the post refers to links in the footer which I can't find.
Does anyone know how I can get a localized version of GitHub? It seems strange that such a widely used application isn't localized.