Update get-started-change-data-capture.md

Fixed typo

Author: phola

articles/cosmos-db/get-started-change-data-capture.md

@@ -158,7 +158,7 @@ First, create a straightforward [Azure Blob Storage](../storage/blobs/index.yml)
 
     :::image type="content" source="media/get-started-change-data-capture/sink-container-name.png" alt-text="Screenshot of the blob container named output set as the sink target.":::
 
-1. Locate the **Update method** section and change the selections to only allow **delete** and **update** operations. Also, specify the **Key columns** as a **List of columns** using the field `_{rid}` as the unique identifier.
+1. Locate the **Update method** section and change the selections to only allow **delete** and **update** operations. Also, specify the **Key columns** as a **List of columns** using the field `{_rid}` as the unique identifier.
 
     :::image type="content" source="media/get-started-change-data-capture/sink-methods-columns.png" alt-text="Screenshot of update methods and key columns being specified for the sink.":::