docs(zip): fix error in zip example (#4259)
docs(zip): fix error in zip example (#4259)


ReactiveX/RxJS,martinsik/rxjs,ReactiveX/rxjs,Brocco/RxJS,benlesh/RxJS,Brocco/RxJS,trxcllnt/RxJS,ReactiveX/rxjs,trxcllnt/RxJS,trxcllnt/RxJS,ReactiveX/RxJS,kwonoj/RxJS,kwonoj/RxJS,ReactiveX/rxjs,benlesh/RxJS,martinsik/rxjs,Brocco/RxJS,martinsik/rxjs,ReactiveX/RxJS,Brocco/RxJS,kwonoj/RxJS,benlesh/RxJS,kwonoj/RxJS,trxcllnt/RxJS,ReactiveX/rxjs,ReactiveX/RxJS,benlesh/RxJS,martinsik/rxjs