message: docs(EMPTY): add example
diff: @@ -3,7 +3,27 @@ import { SchedulerLike } from '../types';
  /**
  * The same Observable instance returned by any call to {@link empty} without a
  - * `scheduler`. It is preferrable to use this over `empty()`.
  + * `scheduler`. It is preferable to use this over `empty()`.
  + *
  + * <span class="informal">Just emits 'complete', and nothing else.</span>
  + *
  + * ![](empty.png)
  + *
  + * ## Examples
  + *
  + * ### Log complete notification
  + *
  + * ```ts
  + * import { EMPTY } from 'rxjs';
  + *
  + * EMPTY.subscribe({
  + * next: () => console.log('Next'),
  + * complete: () => console.log('Complete!')
  + * });
  + *
  + * // Outputs
  + * // Complete!
  + * ```
  */
  export const EMPTY = new Observable<never>(subscriber => subscriber.complete());
  