Replaced reference to cranium.js with backbone-min.js in example HTML. Made capitalization of Model, View, Controller, and Todo consistent. Minor verbage changes (most significantly, added sentence in View portion of example noting how View's render generates content of DOM element using associated Model).
Fixed errors and reworked wording in first two chapters.
Light editing and punctuation fixes in chapter 01 (including adding serial commas, which is debatable - they are recommended in American style guides, but may be less accepted elsewhere).