This is a long and well-detailed explanation on CSP, but how much should we be keeping here rather than just putting on MDN? It might make sense to add anything from here that's missing there and simply point them to MDN to learn more. I'd think we'd just use the bootcamp for overviews or Mozilla-specific things; CSP applies to any web developer--big or small, Moz or not--so this seems like a lot to include in what is (or at least should be) a Mozilla-centric document.