[chirp_users] Users Manual or Help file?

Hello to All,

I downloaded the Chirp software yesterday and got it running with my Wouxon and Baofeng HTs, but now I'm looking for a Users Manual, web page description of how to use the software, or a Help file. Is this available for this software? Chirp looks interesting, but I can't seem to find an explanation of how to use it and what it does.

73, Joe, K1ike