feature request: show base and head branches for PR

[agzam]

Would be awesome to see PR's branches, if possible in both PR buffer and magit-status buffer. Thank you! Maybe then later it would be even possible to make it so one could checkout the relevant branch right from PR.

[vermiculus]

For existing PRs, yes? You can create a function like magithub-issue-view-insert-state and add it to magithub-issue-view-headers-hook. That's how I'd tackle this.