Add Manual do Usuário

* Add manualdousuario.net/en/

Author: rghedin

2025.html

@@ -103,6 +103,7 @@ <h3>Kudos to these websites who <!-- TODO: got --> plan to get naked in 2025!</h
             <li><a href="https://villepreux.net/">Antoine Villepreux</a></li>
             <li><a href="https://waby.ink/">waby.ink</a></li>
             <li><a href="https://silvanzwick.com/">Silvan Zwick</a></li>
+            <li><a href="https://manualdousuario.net/en/">Manual do Usuário</a></li>
             <li><a href="https://github.com/css-naked-day/css-naked-day.github.io/edit/master/2025.html"><strong>Yours?</strong></a></li>
           </ol>
         </section>
@@ -113,4 +114,4 @@ <h3>Kudos to these websites who <!-- TODO: got --> plan to get naked in 2025!</h
       </div>
     </div>
   </body>
-</html>
+</html>