Redirect /docs to the right page

I've hit this a few times where I want to get to docs so I take whatever my urlbar gives me and strip out the actual page so I can get to the root, however that's a 404. This introduces a super easy way to redirect, which could be handy in the future as docs get rewritten. I would much rather do this with a real htaccess file or even just handle 404s gracefully, but that's not currently an option with GitHub pages (since we generate our own and don't use a custom domain).