Changes

* Q: How much detail should I go intothe presentation include?** A: Each of these topics is pretty small and straightforward. Provide enough detail that your colleagues in this course will know what they need to know going forward-- the focus is practical knowledge necessary to understand, modify, and write code. Where appropriate, provide some type of resource for future reference -- a link to an existing web resource, a 1-page handout, or a blog post or wiki page about the topic.