Write user documentation for VeraCrypt support in Tails

This is “A.7 Write user documentation”.

This will replace the documentation we have on opening TrueCrypt volumes using cryptsetup on the command line. We might also work upstream with GNOME for some of this work.

Feature Branch: feature/14481-TCRYPT-support-beta

Attachments

Parent Task: #14468

Related issues

Blocks #14477 (closed)
Blocked by #15043 (closed)

Original created by @segfault on 14476 (Redmine)

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information