message: Simplify example for Change Detection section
diff: @@ -172,8 +172,7 @@ this.items.push({id: 1, name: 'New item'})
  Component will not detect a change. Instead you need to do:
  ```javascript
  -this.items.push({id: 1, name: 'New item'})
  -this.items = [...this.items];
  +this.items = [...this.items, {id: 1, name: 'New item'}];
  ```
  This will cause the component to detect the change and update. Some might have concerns that
  