Update Set-ArcConfig.md

Author: supermistag

exchange/exchange-ps/exchange/Set-ArcConfig.md

@@ -89,9 +89,10 @@ else {
    Set-ArcConfig -Identity Default -ArcTrustedSealers $DomainsRemove
    }
 ```
+
 This examples removes a specific ARC sealer from the list. If, after removing this entry from the list, no other ARC Sealers exist, using the " " works around the below error if $DomainsToRemove is empty 
 
-```powershell
+```
 (Cannot bind argument to parameter 'ArcTrustedSealers' because it is an empty array.)
 ```