Being directed to use GearSwap - Where is the info?

Greetings folks,

I returned a few months ago and tried to setup up my spellcast.  It seems to be outdated.  I noticed several people saying that they were trying to encourage people to use GearSwap.  My question is, where's the documentation on gearswap so we may use it?

I've googled, searched the forums, but I see questions, but no real documentation.

If someone can direct me to where this resource is, I'll check it out.

If you download it from the launcher (in the Addons tab) it comes with some example files and some info. There is also a thread on the BG forums where people share their GS Lua files.