tiny copy change [ci skip]

frontend/src/metabase/dashboard/components/parameters/DashCardParameterMapper.jsx

@@ -6,7 +6,7 @@ const DashCardParameterMapper = ({ dashcard }) =>
     <div className="relative flex-full flex flex-column layout-centered">
         { dashcard.series && dashcard.series.length > 0 &&
             <div className="mx4 my1 p1 rounded" style={{ backgroundColor: "#F5F5F5", color: "#8691AC", marginTop: -10 }}>
-                Make sure to make a selection for each series, or the filter won't work for the card
+                Make sure to make a selection for each series, or the filter won't work on this card.
             </div>
         }
         <div className="flex mx4 z1" style={{ justifyContent: "space-around" }}>