implemented preview of article markdown via AJAX

js/md_preview.js

@@ -1,9 +1,8 @@
-// Optional: Real-time preview using JavaScript
 const textarea = document.querySelector('textarea');
-const preview = document.getElementById('preview');
+const preview = document.getElementById('md_preview');
 
 textarea.addEventListener('input', function() {
-  fetch('preview.php', { // Create a separate preview.php file for real-time updates
+  fetch('functions/preview.php', { // Create a separate preview.php file for real-time updates
     method: 'POST',
     headers: {
       'Content-Type': 'application/x-www-form-urlencoded',
@@ -12,6 +11,6 @@ textarea.addEventListener('input', function() {
   })
     .then(response => response.text())
     .then(data => {
-      preview.innerHTML = data;
+      preview.innerHTML = decodeURIComponent(data);
     });
 });