add proposed search element (#355)

index.html

@@ -2715,6 +2715,15 @@ <h3>HTML Element Role Mappings</h3>
               <!-- <td class="naming"></td> -->
               <td class="comments"></td>
             </tr>
+            <tr tabindex="-1" id="el-search">
+              <th><a data-cite="HTML">`search`</a></th>
+              <td class="aria"><a class="core-mapping" href="#role-map-search">`search`</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-section">
               <th><a data-cite="HTML">`section`</a></th>
               <td class="aria">
@@ -6168,6 +6177,7 @@ <h3>Change Log</h3>
       <section>
         <h4>Substantive changes since moving to the <a href="https://www.w3.org/WAI/ARIA/">Accessible Rich Internet Applications Working Group</a> (03-Nov-2019)</h4>
         <ul>
+          <li>24-Mar-2023: Add `search` element and its mappings. See <a href="https://github.com/w3c/html-aam/pull/355/">GitHub PR 355</a>.</li>
           <li>08-Mar-2023: Update `hgroup` element to be mapped to `role=group`. See  <a href="https://github.com/w3c/html-aam/pull/398">GitHub PR 398</a>.</li>
           <li>08-Mar-2023: Clarify naming algorithm for `output` element. See <a href="https://github.com/w3c/html-aam/pull/402">GitHub PR 402</a>.</li>
           <li>12-Dec-2022: Revise mapping for `s` element to be `role=deletion`. See <a href="https://github.com/w3c/html-aam/pull/442">GitHub PR 442</a>.</li>