[Tails-dev] [review'n'merge] update links

Hello, in this branch I update a wikipedia link (in all languages) and I
update a ticket name in Known issues page.

Please review and merge.

Repo: https://git-tails.immerda.ch/xin/tails/
Branch: update_links
Last Commit: 53f8f1e73224186d4059f74a35e945e86db91fe2

Cheers.
xin