update

docs/manual/index.html

@@ -20,4 +20,13 @@
   }
 </script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/docsify/4.9.1/docsify.min.js"></script>
+<script>
+  var _hmt = _hmt || [];
+  (function() {
+    var hm = document.createElement("script");
+    hm.src = "https://hm.baidu.com/hm.js?f196de11a3e775f167dffaff1532c612";
+    var s = document.getElementsByTagName("script")[0];
+    s.parentNode.insertBefore(hm, s);
+  })();
+</script>
 </html>