message: docs(common): Wrong parameter description on TrackBy
  Track By Function receive the T[index] data, not the node id.
  TrackByFunction reference description has the same issue.
  PR Close
diff: @@ -155,7 +155,7 @@ export class NgForOf<T, U extends NgIterable<T> = NgIterable<T>> implements DoCh
  * rather than the identity of the object itself.
  *
  * The function receives two inputs,
  - * the iteration index and the node object ID.
  + * the iteration index and the associated node data.
  */
  @Input()
  set ngForTrackBy(fn: TrackByFunction<T>) {
  