Added a qr code to the github url by making it from http://www.qrstuff.com/ 	new file:   qrcode_githuburl.png
Added a qr code to the github url by making it from
http://www.qrstuff.com/
	new file:   qrcode_githuburl.png

DarkEnergyScienceCollaboration/Twinkles,LSSTDESC/Twinkles,LSSTDESC/Twinkles,DarkEnergyScienceCollaboration/Twinkles