DOC-3925 Update Google Tag Manager body script (#80)

* Update Google Tag Manager body script

* Update head-scripts.hbs

* Quick edits per Eric

* Add missing line

Author: jgillenwater

src/partials/head-scripts.hbs

@@ -7,9 +7,9 @@
     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-PSHTV2W');</script>
+    })(window,document,'script','dataLayer','GTM-5FSG7Q');</script>
     <!-- End Google Tag Manager -->
-
+    
     {{#with site.keys.segmentIo}}
     <script>
         !(function () {

src/partials/main.hbs

@@ -2,10 +2,10 @@
 {{> toolbar}}
   <div class="content">
   <!-- Google Tag Manager (noscript) -->
-  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PSHTV2W"
+  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5FSG7Q"
   height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
   <!-- End Google Tag Manager (noscript) -->
 {{> article}}
 {{> toc}}
   </div>
-</main>
+</main>