Sample HTML using angular directives.

Change-Id: I94d7d9fadf9086003646446fedd61a318b689dcb
diff --git a/web/gui/src/main/webapp/_sdh/ng-examples/ch02-04-controller-click-msg.html b/web/gui/src/main/webapp/_sdh/ng-examples/ch02-04-controller-click-msg.html
new file mode 100644
index 0000000..4a4a22e
--- /dev/null
+++ b/web/gui/src/main/webapp/_sdh/ng-examples/ch02-04-controller-click-msg.html
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+<!DOCTYPE html>
+<html ng-app="notesApp">
+<head>
+    <title>Notes App</title>
+    <script src="../../tp/angular.js"></script>
+</head>
+<body ng-controller="MainCtrl as ctrl">
+    {{ctrl.message}} AngularJS.
+
+    <button ng-click="ctrl.changeMessage()">
+        Change Message
+    </button>
+
+    <script type="text/javascript">
+        angular.module('notesApp', [])
+                .controller('MainCtrl', [function () {
+                    var self = this;
+                    self.message = 'Hello';
+                    self.changeMessage = function () {
+                        self.message = 'Goodbye'
+                    };
+                }]);
+    </script>
+
+</body>
+</html>