Improve documentation about ISO verification for Mac using GPGTools
The current instructions for ISO verification using GPGTools point to the Linux instructions using command line.
Apparently it is also possible to verify the ISO image through graphical means, as described here:
This technique should be tested and added to the documentation by an OS X user.
See also the steps sent by Steve on tails-dev:
But this should wait until the Installation Assistant is released (#9323 (closed)).
Feature Branch: doc/7147-improve-mac-iso-verification
- Related to #6319