How to contribute to

I’d like to contribute to the documentation at because I found a few outdated things that I stumbled over.
But I can’t seem to sign-up on after clicking on “Edit” on the page. I was able to register my e-mail - but I never received a sign-up link nor is it possible to reset my password.

What’s the best way to get in touch with someone who can help me with this? I couldn’t find a support link and opening a github ticket doesn’t seem right for such a request.