[Tails-l10n] (review)[de] wiki/src/doc/first_steps/installat…

Hi,

please review the manual installation page for Linux (I made this
translation at the end of May, I just checked quickly that nothing
changed, I hope it's really like that ;) )

https://gitlab.com/spriver/tails.git
branch: de_install_linux
last commit: 5e017200 Self review, minor corrections



Cheers!

spriver