Added Sentry.io supports

Author: LCSOGthb

index.html

@@ -40,4 +40,15 @@ <h2>QR Code Generator</h2>
     <p>Made with ❤️ by LCS</p>
   </footer>
 </body>
-</html>
+</html>
+
+<!--Load Sentry.io-->
+<script
+  src="https://js.sentry-cdn.com/3410730c33a0ed28fc51370949258ba8.min.js"
+  crossorigin="anonymous"
+></script>
+
+<!--Trigger Error-->
+<script>
+  myUndefinedFunction();
+</script>