Add heading for class usage
Add heading for class usage

mallikarjunayaddala/virtus,solnic/virtus,artemeff/virtus,macressler/virtus,nuclearsandwich/virtus,XescuGC/virtus,baojjeu/virtus,kristianmandrup/virtus,hapiben/virtus,JustMikey/virtus,faucct/virtus,reevoo/virtus,dslh/virtus