Add new option for auto-zoom

Author: AJ Hsu

articles/azure-maps/power-bi-visual-get-started.md

@@ -126,6 +126,7 @@ The following settings available in the **View** section enable the user to spec
 | Setting          | Description   |
 |------------------|---------------|
 | Auto zoom        | Automatically zooms the map into the data loaded through the **Fields** pane of the visual. As the data changes, the map updates its position accordingly. When **Auto zoom** is set to **Off**, the remaining settings in this section become active that enable to user to define the default map view. |
+| Include reference layer | Include reference layer data when the map automatically zooms. The option is only available when  **Auto zoom** is set to **On**. |
 | Zoom             | The default zoom level of the map. Can be a number between 0 and 22. |
 | Center latitude  | The default latitude of the center of the map. |
 | Center longitude | The default longitude of the center of the map. |