Update Set-ManagementRoleAssignment.md

Minor RecipientGroupScope fix for Set

Author: chrisda

exchange/exchange-ps/exchange/Set-ManagementRoleAssignment.md

@@ -180,7 +180,7 @@ Accept wildcard characters: False
 ### -RecipientGroupScope
 This parameter is functional only in the cloud-based service.
 
-The RecipientGroupScope parameter specifies the universal security group to scope the new role assignment to. You can use any value that uniquely identifies the group: Name, DistinguishedName, GUID, DisplayName.
+The RecipientGroupScope parameter specifies the universal security group to scope the role assignment to. You can use any value that uniquely identifies the group: Name, DistinguishedName, GUID, DisplayName.
 
 ```yaml
 Type: GroupIdParameter