minor touchups on docs

Squashed commit of the following:

commit 8d23cc9ccdcc9c51372ce98a03866ea94d0a3de7
Author: Conor Schaefer <conor.schaefer@gmail.com>
Date:   Thu Mar 13 23:47:57 2014 -0400

    neater docs

commit a9daba4cb268f78d7f9f7b1c468c509a83644742
Author: Conor Schaefer <conor.schaefer@gmail.com>
Date:   Thu Mar 13 23:37:58 2014 -0400

    removes sh formatting in README where inappropriate