minor ui fix

js/main.js

@@ -27,7 +27,7 @@
   oliveUI.setWidgetInstanceConfiguration(widget2, {
     microserviceInputs: {
       'Append Text': {
-        value: 'World'
+        value: 'Microservice result'
       }
     },
     microserviceOutputAdaptAlg: 'return output.dataText;',
@@ -35,9 +35,10 @@
   });
 
   oliveUI.setWidgetInstanceConfiguration(widget3, {
-    javascriptAlg: `return $('<button>This is a javascript generated button</button>').click(function () {
-      alert('Button clicked');
-    });`
+    javascriptAlg: `//You must return a dom object
+return $('<button>This is a javascript generated button</button>').click(function () {
+  alert('Button clicked');
+});`
   });
 
   oliveUI.setWidgetInstanceConfiguration(widget4, {