diff --git a/_layouts/docs.html b/_layouts/docs.html
old mode 100644
new mode 100755
index 7887877453..c563706a6e
--- a/_layouts/docs.html
+++ b/_layouts/docs.html
@@ -53,12 +53,13 @@
 			display: block;
 		}
 	</style>
-	<script type="text/javascript">
-	  !function(){var analytics=window.analytics=window.analytics||[];if(!analytics.initialize)if(analytics.invoked)window.console&&console.error&&console.error("Segment snippet included twice.");else{analytics.invoked=!0;analytics.methods=["trackSubmit","trackClick","trackLink","trackForm","pageview","identify","reset","group","track","ready","alias","debug","page","once","off","on"];analytics.factory=function(t){return function(){var e=Array.prototype.slice.call(arguments);e.unshift(t);analytics.push(e);return analytics}};for(var t=0;t<analytics.methods.length;t++){var e=analytics.methods[t];analytics[e]=analytics.factory(e)}analytics.load=function(t){var e=document.createElement("script");e.type="text/javascript";e.async=!0;e.src=("https:"===document.location.protocol?"https://":"http://")+"cdn.segment.com/analytics.js/v1/"+t+"/analytics.min.js";var n=document.getElementsByTagName("script")[0];n.parentNode.insertBefore(e,n)};analytics.SNIPPET_VERSION="4.0.0";
-	  analytics.load("IWj9D0UpZHZdZUZX9jl98PcpBFWBnBMy");
-	  analytics.page();
-	  }}();
-	</script>
+	<!-- 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-WL2QLG5');</script>
+	<!-- End Google Tag Manager -->
 	{% if site.GH_ENV == "gh_pages" %}
 	<meta name="robots" content="noindex">{% endif %}
 	<!-- favicon -->