add stats and copyright

public/index.html

@@ -24,5 +24,14 @@
         if(/Android|iPhone|iPad|iPod/.test(navigator.userAgent))
             alert('你为什么不用 PKU Helper 客户端呢？');
     </script>
+    <script>
+        var cnzz_s_tag = document.createElement('script');
+        cnzz_s_tag.type = 'text/javascript';
+        cnzz_s_tag.async = true;
+        cnzz_s_tag.charset = "utf-8";
+        cnzz_s_tag.src = "https://w.cnzz.com/c.php?id=1274501752&async=1";
+        var root_s = document.getElementsByTagName('script')[0];
+        root_s.parentNode.insertBefore(cnzz_s_tag, root_s);
+    </script>
 </body>
 </html>

src/Title.js

@@ -23,6 +23,8 @@ export function Title(props) {
                             <li>英梨梨是我的，你们都不要抢</li>
                         </ul>
                         <br />
+                        <p>By @xmcp</p>
+                        <br />
                         <p>
                             This program is free software: you can redistribute it and/or modify
                             it under the terms of the GNU General Public License as published by