Comment 5 for bug 2006402

Thanks Dan!

* I've removed Lunar and Kinetic from the targets
* I have the "target to series" button, but it only gives me options in the landscape-client project, not the ubuntu project, so I can't change it to target focal and jammy.
* I didn't originally have a "Where problems could occur" section because we don't anticipate any. I've added one essentially to that effect.