Update Set-SupervisoryReviewRule.md

Typo fix

Author: chrisda

exchange/exchange-ps/exchange/Set-SupervisoryReviewRule.md

@@ -98,7 +98,7 @@ Position: Named
 Default value: None
 Accept pipeline input: False
 Accept wildcard characters: False
-````
+```
 
 ### -CcsiDataModelOperator
 {{ Fill CcsiDataModelOperator Description }}