Please verify Gnome and KDE wiki articles for correctness

[Jeffrey Walton <noloader@gmail.com>]

Hi Everyone,

A popular Debian-derived distro is preparing to change some printing
components from *.deb packages to Snapd. That is going to cause
trouble for users who remove Snapd, and still use *.deb packages. I
expect some users will want to move from the other distro to Debian.

Two of the wiki articles that will help with a migration to Debian are
<https://wiki.debian.org/Gnome> and <https://wiki.debian.org/KDE>.

It would be helpful if folks with Gnome and KDE experience would look
over the articles and provide corrections and updates.

Jeff