Update SPN script

Author: mattbriggs

articles/azure-stack/azure-stack-create-service-principals.md

@@ -133,6 +133,10 @@ The following information is required as input for the automation parameters:
     -CertificateThumbprint $ServicePrincipal.Thumbprint `
     -ApplicationId $ServicePrincipal.ClientId `
     -TenantId $TenantID
+
+    # Output the SPN details
+    $ServicePrincipal
+    
    ```
 
 2. After the automation finishes, it displays the required details to use the SPN. 

articles/azure-stack/user/azure-stack-create-service-principals.md

@@ -13,7 +13,7 @@ ms.devlang: na
 ms.topic: article
 ms.tgt_pltfrm: na
 ms.workload: na
-ms.date: 08/15/2018
+ms.date: 08/22/2018
 ms.author: sethm
 ms.reviewer: thoroet