docs: note that not all luhn-valid numbers will not pass
docs: note that not all luhn-valid numbers will not pass

robertbaker/angular-credit-cards,aspone/angular-credit-cards,bendrucker/angular-credit-cards,kitak/angular-credit-cards,dribehance/angular-credit-cards,dingels35/angular-credit-cards,matiasarayac/angular-credit-cards,Noxwille/angular-credit-cards,antoinepairet/angular-credit-cards,SimeonC/angular-credit-cards