Add HTML comment re: new GPG keys need to be added to keyring

source/os/team.html

@@ -66,6 +66,7 @@
         </li>
       </ul>
       <h2 id="devuan-developers-past-and-present">Devuan developers past and present</h2>
+<!-- New GPG keys need to be added to the developers' keyring; see rrq or bb|hcb -->
       <p>Developers can be reached via email at <a target="_blank" rel="nofollow" href="https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/devuan-dev">devuan-dev@lists.dyne.org</a> or on irc at libera.chat #devuan-dev as well as using the general <a href="/os/contact">contact</a> options.</p>
       <ul>
         <li>