Fix copyright

Author: cplacani

index.html

@@ -216,7 +216,7 @@ <h2>Supported by</h2>
         <article id="footer" class="container">
             <div class="footer-wrapper">
                 <ul id="copyright">
-                    <li>PyMi &copy; 2013-2017</li>
+                    <li>PyMi &copy; 2013-2022</li>
                     <li>Designed by Zanza00, based on <a href="http://html5up.net">HTML5 UP</a></li>
                     <li>Logo by <a href="https://www.facebook.com/TU-VES-1442116032759831/">Giulia Treves</a></li>
                 </ul>