Hi, thanks for posting!
NCrunch doesn't have any offline documentation at the moment (as the docs are in wiki form), but I could certainly see how this could be useful.
The documentation will be getting a major overhaul soon, with much of the content rewritten and all of it placed within a new proper table of contents. I'll have a look to see what effort would be involved with packaging a copy with the application.
Cheers,
Remco