Adapt /doc/first_steps/introduction_to_gnome_and_the_tails_desktop to GNOME 3
Feature Branch: doc/wheezy
Parent Task: #6980 (closed)
Original created by @sajolida on 7189 (Redmine)
Feature Branch: doc/wheezy
Parent Task: #6980 (closed)
Original created by @sajolida on 7189 (Redmine)