pencil edit to add period

Author: Court72

articles/cognitive-services/Translator/document-translation/how-to-guides/create-use-managed-identities.md

@@ -57,7 +57,7 @@ To get started, you need:
     1. Under the **Resource instances** section, select **Microsoft.CognitiveServices/accounts** as the resource type and select your Translator resource as the instance name.
     1. Make certain that the **Allow Azure services on the trusted services list to access this storage account** box is checked. For more information about managing exceptions, _see_ [Configure Azure Storage firewalls and virtual networks](../../../../storage/common/storage-network-security.md?tabs=azure-portal#manage-exceptions).
 
-        :::image type="content" source="../../media/managed-identities/allow-trusted-services-checkbox-portal-view.png" alt-text="Screenshot: allow trusted services checkbox, portal view":::
+        :::image type="content" source="../../media/managed-identities/allow-trusted-services-checkbox-portal-view.png" alt-text="Screenshot: allow trusted services checkbox, portal view.":::
 
     1. Select **Save**.