[Debian-handbook-translators] Updated salsa git repository from Weblate

[Petter Reinholdtsen]

I've just merged the Weblate translations of the Debian Handbook project
into the salsa git repostory, and updated Weblate to match.  This
improve several Buster translations.

This might be a good time to update <URL: https://debian-handbook.info/ >.

To get the build working, I had to fix one translation in
tr-TR/02_case-study.po, changing </emphasis> to <emphasis>.

-- 
Happy hacking
Petter Reinholdtsen