Update to README - Bower instructions

Added Bower instructions for updating foundation to the newest version.
formatting update to previous commit
Typo fix to change 'ccordian' to 'accordian'
Merge pull request #63 from alexanderstott/patch-1

Typo fix to change 'ccordian' to 'accordian'
Merge pull request #52 from jawinn/patch-1

Bower Info for README