Fix mixed-contents

Author: sangwoo108

index.html

@@ -8,9 +8,9 @@
       content="Browser Night #0 by browseRus, a community event for browser developers in Seoul, May 29, 2025."
     />
     <title>Browser Night 2025 - browseRus</title>
-    <script src="http://cdn.jsdelivr.net/particles.js/2.0.0/particles.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/particles.js/2.0.0/particles.min.js"></script>
     <!-- stats.js lib -->
-    <script src="http://threejs.org/examples/js/libs/stats.min.js"></script>
+    <script src="https://threejs.org/examples/js/libs/stats.min.js"></script>
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
     <link