>That said, we still encourage users to make use of one of the many URL shortening services available with greater functionality than the git.io service provided. GitHub support will not be able to update or edit redirection records served by the git.io archive service.
No, wrong. Don't use a URL shortening service. Don't use any of them. Especially not in anything long-term.
No, wrong. Don't use a URL shortening service. Don't use any of them. Especially not in anything long-term.