* Add airtrail (ct)
* Clean up comments in airtrail.sh
Remove comments about the engine and local core checkout.
---------
Co-authored-by: push-app-to-main[bot] <203845782+push-app-to-main[bot]@users.noreply.github.com>
Co-authored-by: CanbiZ (MickLesk) <47820557+MickLesk@users.noreply.github.com>