Add AMD example

amd/app.js

@@ -0,0 +1,3 @@
+require(['./greetings', './audience'], function(greetings, audience) {
+  console.log(greetings.random() + audience());
+});

amd/audience.js

@@ -0,0 +1,8 @@
+function audience() {
+  arr = ['World', 'Peeps', 'Earthlings', 'my fellow Americans'];
+  return arr[Math.floor(Math.random() * arr.length)]
+}
+
+define(function() {
+  return audience;
+}); 

amd/greetings.js

@@ -0,0 +1,13 @@
+define(function() {
+  return {
+    english: 'Hello ',
+    french: 'Bonjour ',
+    german: 'Hallo ',
+    spanish: 'Hola ',
+
+    random: function() {
+      var arr = ['english', 'french', 'german', 'spanish'];
+      return this[arr[Math.floor(Math.random() * arr.length)]]
+    }
+  };
+});