sequoia.pub links to github.com as well

Apologies, but I accidentally opened an issue and a pull request on GitHub.com because I'm so used to just clicking on a GitHub link on sites to contribute. I will port all that over here, but just wanted to let you know. I wasn't sure if this was just to mirror for people that might not be on the Atmosphere or what.

Or should I just leave the stuff there and, if you're interested in merging it, let you do so?