Add further details about serviceType

Author: adinastoll

articles/purview/tutorial-custom-types.md

@@ -141,7 +141,7 @@ Based on the JSON type definition, let's look at some properties:
 > [!NOTE]
 > **Azure SQL Database** is defined with the same *serviceType* as **Azure SQL Table**.
 
-This field is useful when browsing assets *by source type* in Microsoft Purview:
+This field is useful when browsing assets *by source type* in Microsoft Purview. The *service type* will be an entry point to find all assets that belong to the same *service type* - as defined on their type definition. In the below screenshot of Purview UI, the user limits the result to be the entities specified with *Azure SQL Table* in **serviceType**:
 
 :::image type="content" source="./media/tutorial-custom-types/browse-assets.png" alt-text="Screenshot of the portal showing the path from Data Catalog to Browse to By source type and the asset highlighted.":::