[Tails-l10n] (review)[de] Advanced topics index

Hi,
another rather small review to do:

https://gitlab.com/spriver/tails.git
Branch: de_advanced
HEAD commit: 454d2d6 Translated the untranslated
Affected files:
wiki/src/doc/advanced_topics.de.po
wiki/src/doc/advanced_topics.index.de.po

Cheers!
spriver