* Add basic badges and placeholder screenshot

* Add more badges

* Remove CI badge

CI badge wasn't useful as tempo doesn't run CI on main branch, so it was showing the status of the last PR.

* Update screenshot

Update screenshot to an image in this repo instead of an external one.

* Update README.md

Co-authored-by: Koenraad Verheyden <koenraad.verheyden@posteo.net>

Co-authored-by: Koenraad Verheyden <koenraad.verheyden@posteo.net>