message: docs(refCount): update description
diff: @@ -15,7 +15,7 @@ import { OperatorSubscriber } from './OperatorSubscriber';
  * refCount has only a single subscription independently of the number of subscribers to the target
  * observable.
  *
  - * Note that using the {@link share} operator is exactly the same as using the *publish* operator
  + * Note that using the {@link share} operator is exactly the same as using the `multicast(() => new Subject())` operator
  * (making the observable hot) and the *refCount* operator in a sequence.
  *
  * ![](refCount.png)
  