Provide _some_ instructions in the README

Yeah, button.text is button text, but pointing people at js/config.js
seems like the minimum we should do :)

Signed-off-by: Dan Scott <dan@coffeecode.net>
Merge pull request #9 from dbs/readme

Provide _some_ instructions in the README
Merge branch 'master' of https://github.com/gdg-x/boomerang into sudbury
Get rid of the GDG DevFest Waterloo ad

Signed-off-by: Dan Scott <dan@coffeecode.net>