Revise index.html for LimithilI OS

Updated the HTML structure and content for LimithilI OS.

Author: LinuxDEdeveloper

index.html

@@ -223,7 +223,7 @@ <h3 data-lang="en">Download</h3>
     </section>
 
     <footer>
-        <p>&copy; 2024 LimithilI OS Project. Powered by LinuxDEdeveloper.</p>
+        <p>&copy; 2026 LimithilI OS Project. Powered by LinuxDEdeveloper.</p>
     </footer>
 
     <script>
@@ -237,4 +237,4 @@ <h3 data-lang="en">Download</h3>
         setLanguage(savedLang);
     </script>
 </body>
-</html>
+</html>