Update articles/bastion/kerberos-authentication-portal.md

Author: ShannonLeavitt

articles/bastion/kerberos-authentication-portal.md

@@ -55,7 +55,8 @@ In this section, the following steps help you modify your virtual network and ex
 
 ## To verify Bastion is using Kerberos
 
-[!NOTE] You must use the User Principal Name (UPN) to sign in using Kerberos
+> [!NOTE] 
+> You must use the User Principal Name (UPN) to sign in using Kerberos.
 
 Once you have enabled Kerberos on your Bastion resource, you can verify that it's actually using Kerberos for authentication to the target domain-joined VM.