diff --git a/docs/index.html b/docs/index.html
index 9995147..f3c158b 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -7,6 +7,15 @@
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   <meta name="baidu-site-verification" content="codeva-qdl1hIGxvW" />
 	<link rel="stylesheet" type="text/css" href="index_html.css?h=19caec86">
+  <script>
+    var _hmt = _hmt || [];
+    (function() {
+      var hm = document.createElement("script");
+      hm.src = "https://hm.baidu.com/hm.js?d6506765d7a88006fba8c00dd775203d";
+      var s = document.getElementsByTagName("script")[0];
+      s.parentNode.insertBefore(hm, s);
+    })();
+  </script>
 </head>
 <!-- Google tag (gtag.js) -->
 <script async src="https://www.googletagmanager.com/gtag/js?id=G-1X58LT2YZM"></script>