Update index.html

Author: ttelang

code/chapter09/payment/src/main/webapp/index.html

@@ -262,7 +262,7 @@ <h2>Links</h2>
 
     <footer>
         <p>MicroProfile Config, Fault Tolerance & Telemetry Demo | Payment Service</p>
-        <p>Powered by Open Liberty, MicroProfile 6.1 (Config 3.0, Fault Tolerance 4.0, Telemetry 1.1)</p>
+        <p>Powered by Open Liberty, MicroProfile 7.1 (Config 3.1, Fault Tolerance 4.1, Telemetry 2.1)</p>
     </footer>
 </body>
 </html>