[PATCH cygport] Update xorg.cygclass URLs [GOLDSTAR]

[Andrew Schulman]

> On Thu, 08 Apr 2021 19:26:44 -0400, Andrew Schulman via Cygwin-apps
> > Awarded!
> > 
> > https://cygwin.com/goldstars/#LM
> > https://cygwin.com/goldstars/#AG
> 
> Thank you!
> 
> Lem

BTW I wanted to name you #LL in the Gold stars page, but that name is
already taken, by Lapo Luchini. If you prefer another acronym, let me know
and I'll change it. #Lem? Andrew