I added more info to the about section explaining signup.

I also want to make the 'Demos' text better, but I'm still working out exactly what it should say. Unfortunately if I remove '(click a box below)', people don't know they can click on it lol.

I'm thinking maybe "Try It Live (click a box below)" or maybe "Demos (click a box to try it first)", but idk its hard to get it right without adding visual noise. I agree though, and want to make it better.