Correction: add missing allowance for aria-* on meter element (#519)

* Correction: add missing allowance for aria-* on meter element

closes #517

adds missing allowance for any aria-* attributes applicable to the meter role.

Author: scottaohara

index.html

@@ -2415,7 +2415,8 @@ <h2 id="docconformance">
               </p>
               <p>
                 Otherwise, any 
-                <a data-cite="wai-aria-1.2#global_states">global `aria-*` attributes</a>.
+                <a data-cite="wai-aria-1.2#global_states">global `aria-*` attributes</a>
+                and any other `aria-*` attributes applicable to the `meter` role.
               </p>
             </td>
           </tr>