Corrected a handful of typographic issues.

Line 5: In this context, "set up" is two words.
Line 30: "our browser of choice" changed to "your browser of choice"
Line 32: "it's" changed to "its"
Line 173: Second period added to "e.g"
Line 211: Corrected comma splice
Line 338: Period added at end of sentence
Line 379: "straightforward" is one word; colon added at end of line.
Merge pull request #424 from tedjaniszewski/patch-1

Corrected a handful of typographic issues.