Added a link to the cookie page, at Robert's request

 - Legacy-Id: 4738

Author: adamroach

ietf/templates/registration/index.html

@@ -16,6 +16,7 @@ <h1>Account Management</h1>
       {% endif %}
       <li><a href="/accounts/create/">Request an account</a></li>
       <li><a href="/accounts/reset/">Request a password reset </a></li>
+      <li><a href="/cookies/">Change your datatracker preferences for this browser</a></li>
    </ul>
 </p>