Update app.py

app.py

@@ -141,7 +141,19 @@ links.forEach(link => {
 }
 """
 
-with gr.Blocks(css=custom_css) as demo:
+head = f"""
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-8YPXF4536P"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-8YPXF4536P');
+</script>
+"""
+
+with gr.Blocks(css=custom_css, head=head) as demo:
     gr.Markdown(
         """
     # Free Face Search Online