chore(README): provide up to date scoped install
chore(README): provide up to date scoped install

Igorbek/rxjs5,adrianomelo/RxJSNext,trxcllnt/RxJS,SangKa/RxJS-Docs-CN,benlesh/RxJS,benlesh/RxJS,adrianomelo/RxJSNext,jayphelps/rxjs,elliotschi/rxjs,figueredo/RxJS,figueredo/RxJS,RxJS-CN/RxJS-Docs-CN,jinroh/RxJS,robwormald/RxJS,trxcllnt/RxJS,martinsik/rxjs,Brocco/RxJS,martinsik/rxjs,ReactiveX/RxJS,Brocco/RxJS,figueredo/RxJS,jayphelps/rxjs,figueredo/RxJS,RxJS-CN/RxJS-Docs-CN,gluck/RxJS,adrianomelo/RxJSNext,SangKa/RxJS-Docs-CN,adrianomelo/RxJS-1,staltz/RxJSNext,IgorMinar/RxJS,robwormald/RxJS,RxJS-CN/RxJS-Docs-CN,Igorbek/rxjs5,kwonoj/RxJS,saneyuki/RxJS,ReactiveX/RxJS,jadbox/RxJS,kwonoj/RxJS,elliotschi/rxjs,RxJS-CN/RxJS-Docs-CN,kwonoj/RxJS,trxcllnt/RxJS,jadbox/RxJS,gluck/RxJS,martinsik/rxjs,adrianomelo/RxJS-1,robwormald/RxJS,benlesh/RxJS,Igorbek/rxjs5,jinroh/RxJS,ReactiveX/RxJS,jayphelps/rxjs,Igorbek/rxjs5,staltz/RxJSNext,adrianomelo/RxJS-1,trxcllnt/RxJS,ReactiveX/rxjs,robwormald/RxJS,Brocco/RxJS,ReactiveX/rxjs,jayphelps/rxjs,saneyuki/RxJS,jinroh/RxJS,Brocco/RxJS,staltz/RxJSNext,SangKa/RxJS-Docs-CN,jadbox/RxJS,benlesh/RxJS,adrianomelo/RxJS-1,kwonoj/RxJS,IgorMinar/RxJS,ReactiveX/rxjs,ReactiveX/RxJS,elliotschi/rxjs,gluck/RxJS,gluck/RxJS,adrianomelo/RxJSNext,SangKa/RxJS-Docs-CN,staltz/RxJSNext,ReactiveX/rxjs,elliotschi/rxjs,jadbox/RxJS,jayphelps/rxjs,jinroh/RxJS,martinsik/rxjs