hadley/adv-r — pull request #511 by amoeba (2014-05-28 00:02:48+00:00)
Title: Fixing small typos and changing some wording

In addition to fixing small typos, I made a change to two phrases that seemed like mistakes and my changes might not necessarily be (1) correct or (2) your preferred wording.

Two code blocks were un-indented, along with surrounding paragraphs, to make the code blocks render correctly (I think).