update .gitignore
update .gitignore

tasselx/QRCode-Swift,dave256/QRCode,nanoxd/QRCode,andrewkkchan/QRCode,tasselx/QRCode-Swift,keyclipse/QRCode,aschuch/QRCode,eeschimosu/QRCode,andrewkkchan/QRCode,boxenjim/QRCode,boxenjim/QRCode,andrewkkchan/QRCode,rromanchuk/QRCode,eeschimosu/QRCode,jj101k/QRCode,rromanchuk/QRCode,jj101k/QRCode,rromanchuk/QRCode,dave256/QRCode,aschuch/QRCode,nanoxd/QRCode,dave256/QRCode,eeschimosu/QRCode,keyclipse/QRCode