adds google tag manager

HarryEMartland · HarryEMartland · commit 29885e5ef02e · 2020-08-11T16:47:01.000+01:00
diff --git a/index.html b/index.html
@@ -2,6 +2,13 @@
 <html lang="en">
 
 <head>
+    <!-- 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-WPSF3G7');</script>
+    <!-- End Google Tag Manager -->
     <!-- gihub pages version -->
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
@@ -25,6 +32,10 @@
 </head>
 
 <body>
+<!-- Google Tag Manager (noscript) -->
+<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-WPSF3G7"
+                  height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
+<!-- End Google Tag Manager (noscript) -->
 
 <div id="fb-root"></div>
 <script async defer crossorigin="anonymous" src="https://connect.facebook.net/en_GB/sdk.js#xfbml=1&version=v8.0&appId=237112290739662&autoLogAppEvents=1" nonce="fagP3uUO"></script>
