Index page version number fix

Author: ppeccin

src/runtime/standalone/index.part2.html

@@ -45,7 +45,7 @@
             <div class="container">
                 <script>WMSX.WEB_EXTENSIONS_PROXY_SERVER = WMSX.WEB_EXTENSIONS_SERVER;</script>
                 <p>Created by <a href="http://twitter.com/ppeccin" target="_blank">Paulo A. Peccin</a></p>
-                <p>v5.4.0 &nbsp;<a href="https://github.com/ppeccin/webmsx" target="_blank">Docs & Project Homepage</a></p>
+                <p>v5.4.2 &nbsp;<a href="https://github.com/ppeccin/webmsx" target="_blank">Docs & Project Homepage</a></p>
             </div>
         </div>