clarify tables support of responsive utility classes, of which there is none

docs/scaffolding.html

@@ -509,7 +509,7 @@
           </table>
 
           <h3>When to use</h3>
-          <p>Use on a limited basis and avoid creating entirely different versions of the same site. Instead, use them to complement each device's presentation.</p>
+          <p>Use on a limited basis and avoid creating entirely different versions of the same site. Instead, use them to complement each device's presentation. Responsive utilities should not be used with tables, and as such are not supported.</p>
 
           <h3>Responsive utilities test case</h3>
           <p>Resize your browser or load on different devices to test the above classes.</p>

docs/templates/pages/scaffolding.mustache

@@ -442,7 +442,7 @@
           </table>
 
           <h3>{{_i}}When to use{{/i}}</h3>
-          <p>{{_i}}Use on a limited basis and avoid creating entirely different versions of the same site. Instead, use them to complement each device's presentation.{{/i}}</p>
+          <p>{{_i}}Use on a limited basis and avoid creating entirely different versions of the same site. Instead, use them to complement each device's presentation. Responsive utilities should not be used with tables, and as such are not supported.{{/i}}</p>
 
           <h3>{{_i}}Responsive utilities test case{{/i}}</h3>
           <p>{{_i}}Resize your browser or load on different devices to test the above classes.{{/i}}</p>