Update Download.html

Author: wkliao

wiki/Download.html

@@ -11,6 +11,15 @@
 </style>-->
 <link rel="icon" href="../images/nuitfavicon.ico" />
 
+<!-- Global site tag (gtag.js) - Google Analytics -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-CJ8LEHVTXW"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-CJ8LEHVTXW');
+</script>
 <script>
   (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
   (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),