Document using Tor bridges to work around missing entry guards

Originally created by @Anonymous on #11884 (Redmine)

consider adding the manual bridge setting as a workaround for the lack of guard nodes by advising advanced users of tails to use the manual tor configuration with chosen entry guards without compromising the amnesic nature of tails

ether in the documentation or over a gui interface within tails

Related issues

Related to #11732
Related to #8825 (closed)

Edited May 15, 2020 by Anonymous

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