-missing 'register SSH keys' actions in "Working with a sky-bag"

[Wither-Bane]

-missing actions in "Working with a sky-bag"
-you have to setup an ssh key in your github account first, before you can push to an SSH remote. Perhaps including this link for a Github guide to generating SSH keys will prove useful to readers looking to resolve issues in this step: https://docs.github.com/en/github/authenticating-to-github/connecting-to-github-with-ssh