Add Google Analytics tag to site template

Author: KSemenenko

github-pages/index.html

@@ -32,6 +32,16 @@
   <meta name="application-name" content="dotnet-skills">
   <meta name="color-scheme" content="light">
 
+  <!-- Google tag (gtag.js) -->
+  <script async src="https://www.googletagmanager.com/gtag/js?id=G-7SDZKDYXG1"></script>
+  <script>
+    window.dataLayer = window.dataLayer || [];
+    function gtag(){dataLayer.push(arguments);}
+    gtag('js', new Date());
+
+    gtag('config', 'G-7SDZKDYXG1');
+  </script>
+
   <script type="application/ld+json">
 PAGE_JSON_LD_PLACEHOLDER
   </script>