Add update time

index.php

@@ -80,7 +80,7 @@ if (empty($_SESSION['login']) or $_SESSION['login'] !== true) {
     $body = str_replace("</h2>", ' <a href="#" class="backTop">⬆️</a></h2>', $body);
     $body = str_replace("</h3>", ' <a href="#" class="backTop">⬆️</a></h3>', $body);
     $menu = makeMenu($dir);
-    $lastMod = date("d-m-Y H:i", filectime('content/' . urldecode($dir) . '/' . urldecode($file) . '.md'));
+    $lastMod = date("d-m-Y H:i", filemtime('content/' . urldecode($dir) . '/' . urldecode($file) . '.md'));
 }
 require 'tpl/header.html';
 require 'tpl/aside.html';