Write "how to verify digital signatures"-manual
The short user manual currently includes a section about how users can verify that they have downloaded the right TBB (i.e. how to verify digital signatures).
A number of people have suggested that we either move this piece into an advanced section of the manual, or that we take it out completely. I intend to take it out completely and suggest that we write a separate manual for this (if we use .xhtml as the format, we can still attach it to support emails and such).
We can link to this manual, as well as the other manuals we (will) have, from the front page of torproject.org.