feat: Linkify external resources on the public profile page (ietf-tools#3647)

Author: larseggert

ietf/templates/person/profile.html

@@ -70,7 +70,7 @@ <h2 class="mt-5" id="extresources">External Resources</h2>
                             <td>
                                 <span title="{{ extres.name.name }}">{% firstof extres.display_name extres.name.name %}</span>
                             </td>
-                            <td>{{ extres.value }}</td>
+                            <td>{{ extres.value|linkify }}</td>
                         </tr>
                     {% endfor %}
                 </tbody>