Retail QR Code Stage 2

@stulees @donnapep @swbloom @pcsandford 

Second Stage of my Retail QR Code up for review.

-I added a destination page for the qr code (coupon.html)
-separated out the css animation for the qr code so it can be reused.
-removed contribute github text per Byron recommendation.

(had the wrong readme in the root so i fixed that as well)

Thank,
Mat