update copyright notice

diff --git a/2023/includes/footer.html b/2023/includes/footer.html
index 03dbe5d7a3f7f11da552039fa684968ddb210972..0b1ee5c60675ea90e0450d7e9ba72e9ab982e977 100644 (file)
--- a/2023/includes/footer.html
+++ b/2023/includes/footer.html
@@ -12,7 +12,7 @@
       <a rel="license"
         href="http://creativecommons.org/licenses/by-sa/4.0/">
        Creative Commons Attribution-ShareAlike 4.0</a>.
-      Copyright &copy; 2014-2022 Free Software Foundation. It was built using
+      Copyright &copy; 2014-2023 Free Software Foundation. It was built using
       <a href="https://github.com/twbs/bootstrap/tree/v3.3.5">Bootstrap 3.3.5</a>,
       which is licensed under <a href="http://www.gnu.org/licenses/license-list.html#Expat">
        Expat</a>. The JavaScript is free software with