add tags

www/index.html

                   <td class="autodoc_home_modal_pages"></td>
                 </tr>
                 <tr>
-                  <th scope="row">Tags</th>
+                  <th scope="row">
+                    Tags
+                    <button type="button" class="btn btn-outline-primary btn-sm">Add</button>
+                  </th>
                   <td class="autodoc_home_modal_tags">
                   </td>
                 </tr>