Add general link to libera.chat.

community.html

@@ -143,7 +143,7 @@ <h1>Forum / Mailing List</h1>
 			<h1>IRC Channel</h1>
       <ul>
         <li>Join via the libera.chat <a href="https://web.libera.chat/?channel=#openscad">web chat</a> (KiwiIRC)</li>
-        <li>Connect with an IRC client to <a href="irc:openscad@irc.libera.chat" target="_blank">#openscad</a> on irc.libera.chat</li>
+        <li>Connect with an IRC client to <a href="irc:openscad@irc.libera.chat" target="_blank">#openscad</a> on <a href="ircs://irc.libera.chat:6697">irc.libera.chat</a> +6697 (TLS)</li>
         <li>Additional documentation on how to connect can be found at <a href="https://libera.chat/guides">https://libera.chat/guides</a></li>
       </ul>
 		</section>