fixes #9
fixes #9

# Added markup examples to README.md

tdeekens/DOMPurify,togusafish/t-ashula-_-DOMPurify,neilj/DOMPurify,neilj/DOMPurify,voku/DOMPurify,kwangkim/DOMPurify,ConradIrwin/DOMPurify,neilj/DOMPurify,Joris-van-der-Wel/DOMPurify,tdeekens/DOMPurify,tdeekens/DOMPurify,Joris-van-der-Wel/DOMPurify,voku/DOMPurify,togusafish/t-ashula-_-DOMPurify,Joris-van-der-Wel/DOMPurify,ConradIrwin/DOMPurify,kwangkim/DOMPurify