migration.md: Typo (#3806)
migration.md: Typo (#3806)


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