Merge pull request #12 from milktrader/master

update README to omit instructions to add to REQUIRE file since Pkg.add ...
Merge pull request #13 from milktrader/master

fix README example s/begin/do in first context example
README: Adds TOC and line breaks after sentences.
README: Fix TOC
README: Bold TOC
README: Adds section on recommended workflow (closes #14)
added runtest macro