Grant-DbaAgPermission - Update Type description (#9201)

public/Grant-DbaAgPermission.ps1

@@ -23,7 +23,7 @@ function Grant-DbaAgPermission {
         Only modify specific availability groups.
 
     .PARAMETER Type
-        Specify type: Endpoint or AvailabilityGroup. Endpoint will modify the DatabaseMirror endpoint type.
+        Specify the object type to grant the provided Permission. Values accepted are Endpoint and/or AvailabilityGroup. Endpoint type will update the DatabaseMirroring object type found on the instance.
 
     .PARAMETER Permission
         Grants one or more permissions:
@@ -215,4 +215,4 @@ function Grant-DbaAgPermission {
             }
         }
     }
-}
+}