Add SecureDrop workflow to our documentation
Originally created by @emmapeel on #10853 (Redmine)
During the CCC we talked with some users that use SecureDrop.
Their workflow is to download a gpg-encrypted file and open it on an air-gapped Tails device. This device has no Internet but it has the local documentation for Tails.
It would be great for this users to be able to follow the different steps of Secure Drop while offline.
Blueprint: https://tails.boum.org/blueprint/securedrop/