message: fix: Fix README
  Thank you for your PR. I'll fix it.
diff: @@ -113,7 +113,7 @@ export class AppModule { }
  [draggable]="true"
  [throttleDrag]="0"
  - (drgStart)="onDragStart($event)"
  + (dragStart)="onDragStart($event)"
  (drag)="onDrag($event)"
  (dragEnd)="onDragEnd($event)"
  @@ -130,7 +130,7 @@ export class AppModule { }
  [throttleScale]="0"
  (scaleStart)="onScaleStart($event)"
  (scale)="onScale($event)"
  - (sacleEnd)="onScaleEnd($event)"
  + (scaleEnd)="onScaleEnd($event)"
  [rotatable]="false"
  