Added a scheduler that actually allows printed output when the code sample is run on the main thread.
Added a scheduler that actually allows printed output when the code sample is run on the main thread.

ReactiveX/RxSwift,ReactiveX/RxSwift,kzaher/RxSwift,ReactiveX/RxSwift,kzaher/RxSwift,kzaher/RxSwift,kzaher/RxSwift