diff --git a/docs/index.html b/docs/index.html
index 3e690353e..bb7dc842d 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -36,9 +36,21 @@
 
     <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto+Mono:400,500,700|Roboto:300,400,500,700">
     <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
+
+    <!-- Google Tag Manager -->
+    <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+    new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+    j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+    'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+    })(window,document,'script','dataLayer','GTM-T8CV87Q');</script>
+    <!-- End Google Tag Manager -->
   </head>
 
   <body>
+    <!-- Google Tag Manager (noscript) -->
+    <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-T8CV87Q"
+    height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
+    <!-- End Google Tag Manager (noscript) -->
     <div id="docs"></div>
   </body>
 </html>
