message: update useEventEmitter docs
diff: @@ -28,7 +28,7 @@ export class EventEmitter<T> {
  };
  }
  -export default function useEventEmitter<T>() {
  +export default function useEventEmitter<T = void>() {
  const ref = useRef<EventEmitter<T>>();
  if (!ref.current) {
  ref.current = new EventEmitter();
  