Screenshots in README

[trmcnvn]

Screenshots in the README should be updated when finalized + logo?

[cybrox]

I guess we can do that in one go once things are calm enough that we dare to change our organisation + repos to kitsu as well.

[RokeJulianLockhart]

#774 (comment)

@cybrox, it doesn't seem like that's ever going to occur, so perhaps reconsider it being a prerequisite.