Fix success message text

static/index.html.tmpl

@@ -136,7 +136,7 @@
                     submitBtn.remove()
                     submitNameLabel.remove()
 
-                    const textNode = document.createTextNode("This is some text added to the body.");
+                    const textNode = document.createTextNode("Your choices have been submitted, thx :)");
                     document.body.appendChild(textNode);
                 })
                 .catch(error => {