update s element mapping (#469)

the s element was remapped from generic to role=deletion in html aam. 

the only potential change here for conformance checkers is to signal a warning that use of the deletion role on the s element is unnecessary.

this pr will close #466

Author: scottaohara

index.html

@@ -64,6 +64,10 @@
         the following substantive additions and/or corrections have been proposed:
       </p>
       <ul>
+        <li>
+          <a href="https://github.com/w3c/html-aria/pull/469">29 June 2023 - Addition:</a>
+          Update the <a href="#s">`s`</a> element allowed roles to indicate use of `role=deletion` on the element would be considered redundnat.
+        </li>
         <li>
           <a href="https://github.com/w3c/html-aria/pull/435">31 May 2023 - Correction:</a>
           Conditionally revise allowed `aria-*` attributes and roles on <a href="#el-summary">`summary`</a> element.
@@ -2631,11 +2635,11 @@ <h2 id="docconformance">
               [^s^]
             </th>
             <td>
-              <a>No corresponding role</a>
+              <code>role=<a href="#index-aria-deletion">`deletion`</a></code>
             </td>
             <td>
-              <p>
-                <a><strong>Any `role`</strong></a>
+              <p class="proposed addition">
+                <a><strong>Any `role`</strong></a>, though <code><a href="#index-aria-deletion">`deletion`</a></code> is NOT RECOMMENDED.
               </p>
               <p class="addition"><a>Naming Prohibited</a></p>
               <p>