Update waf-front-door-configure-ip-restriction.md

sign-off

Author: teresayao

articles/frontdoor/waf-front-door-configure-ip-restriction.md

@@ -134,7 +134,7 @@ In the following example, replace *ip-address-range-1*, *ip-address-range-2* wit
 $IPMatchCondition = New-AzFrontDoorWafMatchConditionObject `
 -MatchVariable  RemoteAddr `
 -OperatorProperty IPMatch `
--MatchValue ["ip-address-range-1", "ip-address-range-2"]
+-MatchValue "ip-address-range-1", "ip-address-range-2"
 ```
 Create an IP *match all condition* rule by using the following command:
 ```powershell