Update event tracking (#1188)

Author: patmellon

_templates/layout.html

@@ -51,6 +51,11 @@
       eventAction: 'click',
       eventLabel: $(this).attr("data-response")
     });
+    gtag('event', 'click', {
+      'event_category': $(this).attr("data-response"),
+      'event_label': $("h1").first().text(),
+      'tutorial_link': window.location.href
+    });
    });
 
    $("[data-behavior='was-this-helpful-event']").on('click', function(){