Use current release link on side_nav

Author: ilario

_includes/side_nav.html

@@ -1,7 +1,7 @@
 <h4>Links</h4>
 <div class="panel">
     <ul class="fa-ul">
-        <li><i class="fa-li fa fa-download" aria-hidden="true"></i><a href="https://downloads.libremesh.org/releases/2020.1/">Latest Release Firmware</a></li>
+        <li><i class="fa-li fa fa-download" aria-hidden="true"></i><a href="https://downloads.libremesh.org/current/">Latest Release Firmware</a></li>
         <li><i class="fa-li fa fa-linux" aria-hidden="true"></i><a href="development.html">Build Firmware Locally</a></li>
         <li><i class="fa-li fa fa-code-fork" aria-hidden="true"></i><a href="https://github.com/libremesh/">Source Code</a></li>
         <li><i class="fa-li fa fa-envelope" aria-hidden="true"></i><a href="https://www.autistici.org/mailman/listinfo/libremesh">Mailing List</a></li>