add a few cli arguments
public dir
changelog
v0.2.0

 [BUG FIXES]
 - jquery.history.js was missing. [GH#2, Frew Taylor]

 [ENHANCEMENTS]
 - add a few command-line arguments.
 - can access a public dir for pictures
 - change ~~~ for ``` for code blocks

 [STATISTICS]
 - code churn: 4 files changed, 179 insertions(+), 3 deletions(-)