[Tails-l10n] (review) wiki/src/doc/anonymous_internet/electr…

Hi,

while translating the Electrum page into German I stumbled across a
dead link. I edited the .mdwn, I hope this is the right way to do fix it
.
Please review:

https://gitlab.com/spriver/tails.git
branch: doc_electrum
commit: 82b1447f Edited the doc link


Cheers!

spriver