New post on RevDB is needed

Issue #2 new
anatoly techtonik
created an issue

Surely RevDB needs more exposure to developers. This is README:

This is the original blog post, which describes the basics:
(note that many of the limitations described in that blog post have
been removed now: threads and cpyext are implemented; various crashes
have been fixed; ``next``-style commands behave more reasonably now;
``import`` in ``!`` commands is special-cased).

Also, it needs a coverage, how to integrate it with Python IDEs, such as Spyder.