[Debian-salsa-ci] Is Salsa CI easy to use for anyone learning Debian packaging?

[Otto Kekäläinen]

Thanks Phil and Marc for the feedback!

I updated the intro as suggested by Marc.

I also wrote a new wiki page https://wiki.debian.org/SalsaCI. This is
intentionally a minimal stub that recommends readers to see the README
in the project instead. Feel free to sprinkle links to this page
elsewhere in the wiki.