Coming soon - are you a software developer that should be really clever but when you look at Swift code your eyes water? Think you've understood ? and ! and then found an edge case that makes no sense whatsoever? Then Notes on Swift will be for you - clear, simple, readable instructions on Swift.
Don't think it's clear, simple or readable? That's what Pull Requests are for.
Written by people who are learning Swift for people who will in future learn Swift.