copy help.html to inst/www/ from www

Author: gexijin

inst/www/help.html

@@ -784,6 +784,15 @@ <h3>About the Author</h3>
             }
         })();
     </script>
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-57404PEM02"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-57404PEM02');
+</script>
 </div>
 </body>
 </html>