Update index.html

Author: riverfor

docs/index.html

@@ -10,7 +10,7 @@
 <script src="//cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
 
 <script type="module" src="https://chat.pgpt.cloud/assets/index.js"></script>
-<link rel="stylesheet" href="https://chat.pgpt.cloud/assets/index.css"/>
+<link rel="stylesheet" href="https://pgptchat.dev.freedropship.cn/assets/index.css"/>
 
 <meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1, user-scalable=no">
 <link rel="stylesheet" type="text/css" href="static/qpython_theme.css">