message: docs: Added multicast to observable descriptions
  PR Close
diff: @@ -281,14 +281,14 @@ export abstract class AbstractControl {
  /**
  * @description
  - * An observable that emits an event every time the value of the control changes, in
  + * A multicasted observable that emits an event every time the value of the control changes, in
  * the UI or programmatically.
  */
  public readonly valueChanges: Observable<any>;
  /**
  * @description
  - * An observable that emits an event every time the validation `status` of the control
  + * A multicasted observable that emits an event every time the validation `status` of the control
  * is re-calculated.
  */
  public readonly statusChanges: Observable<any>;
  