Revert changes to .md file, since codeplex is not rendering properly
Revert changes to .md file, since codeplex is not rendering properly

alexeymarkov/RxCpp,Reactive-Extensions/RxCpp,ReactiveX/RxCpp,ReactiveX/RxCpp,alexeymarkov/RxCpp,Reactive-Extensions/RxCpp,ReactiveX/RxCpp,alexeymarkov/RxCpp,Reactive-Extensions/RxCpp