Update flight-director-loop.txt

[bignoter]

It's a minor adjustment, but pretty sure the word is not 'out', it's either 'the' or 'our' - which is consistent with your footnote - that it's getting in the way of what ground is trying to diagnose.

[MrAureliusR]

This has already been fixed in the repo, it just hasn't appeared on the website yet.