Update templates/index.html

templates/index.html

@@ -31,7 +31,7 @@
     };
   </script>
   <script src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js" id="MathJax-script" async></script>
-  <script src="https://cdn.jsdelivr.net/npm/marked/lib/marked.umd.min.js"></script>
+  <script src="https://cdn.jsdelivr.net/npm/marked@15.0.7/lib/marked.umd.min.js"></script>
 
   <style>
     @import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;700&display=swap');