Update index.html (#808)

* Update index.html

* Update index.html

* Update index.html

---------

Co-authored-by: HUSSAR-mtrela (Martin Trela) <[email protected]>

Author: mddifilippo89

samples/gauges/radial-gauge/labels/index.html

@@ -24,6 +24,8 @@
         label-extent="0.65"
         labels-pre-terminal="0"
         labels-post-initial="0"
+        title-displays-value=true
+        subtitle-text="MPH"
         height="100%"
         width="100%"
         minimum-value="0" value="50"
@@ -37,4 +39,4 @@
     <% if (false) { %><script src="src/index.ts"></script><% } %>
 
   </body>
-</html>
+</html>