message: fixed minor bug in angular demo
diff: @@ -107,7 +107,6 @@ Hide Completed
  <button (click)="deleteTask(task)">Delete</button>
  </div>
  <button (click)="addTask()">Add Task</button>
  -);
  ```
  The `modelState` property of the `ErrorInfo` object contains error messages for any currently invalid fields in the entity object.
  \ No newline at end of file
  