Add examples for mongoose blog article

PUBLISHED_FROM=54f54211919bb2276e02b4d10306ffa5540a9313

examples/connected_device_3/web_root/main.js

@@ -0,0 +1,12 @@
+$(document).ready(function() {
+  // Start 1-second timer to call RESTful endpoint
+  setInterval(function() {
+    $.ajax({
+      url: '/get_cpu_usage',
+      dataType: 'json',
+      success: function(json) {
+        $('#cpu_usage').text(json.result + '% ');
+      }
+    });
+  }, 1000);
+});