Revise address element to map to role=group

Per discussion `<address>` in #373, WG had no objections to mapping the element to the `group` role.

index.html

@@ -320,34 +320,13 @@ <h3>HTML Element Role Mappings</h3>
             </tr>
             <tr tabindex="-1" id="el-address">
               <th><a data-cite="HTML">`address`</a></th>
-              <td class="aria">No corresponding role</td>
-              <td class="ia2">
-                <div class="role">
-                  <span class="type">Roles:</span>
-                  `ROLE_SYSTEM_GROUPING`; `IA2_ROLE_SECTION`
-                </div>
-              </td>
-              <td class="uia">
-                <div class="ctrltype">
-                  <span class="type">Control Type:</span> `Group`
-                </div>
-              </td>
-              <td class="atk">
-                <div class="role">
-                  <span class="type">Role:</span> `ATK_ROLE_SECTION`
-                </div>
-              </td>
-              <td class="ax">
-                <div class="role">
-                  <span class="type">AXRole:</span> `AXGroup`
-                </div>
-                <div class="subrole">
-                  <span class="type">AXSubrole:</span> `(nil)`
-                </div>
-                <div class="roledesc">
-                  <span class="type">AXRoleDescription:</span> `"group"`
-                </div>
+              <td class="aria">
+                <a class="core-mapping" href="#role-map-group">`group`</a> role
               </td>
+              <td class="ia2"><div class="general">Use WAI-ARIA mapping</div></td>
+              <td class="uia"><div class="general">Use WAI-ARIA mapping</div></td>
+              <td class="atk"><div class="general">Use WAI-ARIA mapping</div></td>
+              <td class="ax"><div class="general">Use WAI-ARIA mapping</div></td>
               <td class="comments"></td>
             </tr>
             <tr tabindex="-1" id="el-area">