[PATCH] doc: Examples of notmuch-reindex use and crypto policy

[David Bremner]

Daniel Kahn Gillmor <dkg at fifthhorseman.net> writes:

> Currently, notmuch has the levers needed to set coherent crypto policy
> around how cleartext is indexed, which also has an impact on how
> messages are rendered.  But we don't have a lot of documentation about
> how to do sensible things.  This is an initial attempt to address
> that.

pushed to master,

d