Update manual with Master Sync and Midi Wizard instructions

basic info about master sync and the new midi wizard.  Not sure how much detail is needed
well it is hard do hold down one button an clicking another with the mouse. I can only either hold down a button or click another one.  I read the test so that both buttons need to be pressed simultaneously. The new version is better but still a bit ambiguous, I'll try to come up with a better one.