Ah, thanks for pointing that out - we'll add a readme file to the demo shortly.
In the meantime, I'll try to address your concerns here:
Regarding "Automatic Installation", no installation is required. Simply double-click 3DAAKDemo.exe
to run the game.
Regarding "Full Level Edit", please see this forum post
And regarding "Full Tutorial and Learning Documents", they can all be found on our website under the Tutorials link
I hope this answers your questions about the demo. Just ask if you have any further questions or if anything is unclear.