Merge pull request #35 from bentley/dox
authorClifford Wolf <clifford@clifford.at>
Fri, 2 May 2014 11:18:43 +0000 (13:18 +0200)
committerClifford Wolf <clifford@clifford.at>
Fri, 2 May 2014 11:18:43 +0000 (13:18 +0200)
Typos and grammar fixes through chapter 4.


Trivial merge