improved the example of output-function

examples/output-function.ejs

@@ -1,3 +1,10 @@
-<p>
-  <strong><%= echo(name) %></strong> is a <%= echo(age) %> year old <% echo(species) %>.
-</p>
+<ul>
+<%
+    users.forEach(function (user) {
+        echo('<li>');
+            echo('<strong>' + user.name + '</strong>');
+            echo('is a ' + user.age + ' year old ' + user.species);
+        echo('</li>\n');
+    });
+-%>
+</ul>

examples/output-function.js

@@ -7,9 +7,11 @@ var read = require('fs').readFileSync;
 var join = require('path').join;
 var path = join(__dirname, '/output-function.ejs');
 var data = {
-	name: 'Tobi',
-	age: 2,
-	species: 'ferret'
+    users: [
+        { name: 'Tobi', age: 2, species: 'ferret' },
+        { name: 'Loki', age: 2, species: 'ferret' },
+        { name: 'Jane', age: 6, species: 'ferret' }
+      ]
 };
 
 var ret = ejs.compile(read(path, 'utf8'), {