[doc] Added example

.gitignore

@@ -0,0 +1 @@
+node_modules

example/index.js

@@ -0,0 +1,32 @@
+var extend = require('../')
+  , EventEmitter = require('events').EventEmitter;
+
+function Awesomeness() {
+  var self = this;
+
+  setTimeout(function () {
+    self.render(self.data);
+  }, 100);
+
+  EventEmitter.call(this);
+}
+
+Awesomeness.prototype = new EventEmitter;
+Awesomeness.prototype.constructor = Awesomeness;
+
+Awesomeness.prototype.data = 'bar';
+Awesomeness.prototype.render = function render() {
+  // does nothing
+};
+
+Awesomeness.extend = extend;
+
+var SuperAwesome = Awesomeness.extend({
+    data: 'trololol'
+
+  , render: function render(data) {
+      console.log(data);
+    }
+});
+
+new SuperAwesome();