QB64TUTORIAL.COM is ready

[mnrvovrfc]

I don't like "$NOPREFIX" because it could cause confusion about which keyword was created by Dartmouth or by M$, and which was not. And Freebasic having something that allows "new" keywords used in program which are supposed to be edited away from Q(uick)Basic but I guess some people want to go back to 16-bit, like the ones using music tracker software...

EDIT: Good job with the warning near the top of the lession #5.