fix demo

components/transfer/demo/advanced.md

-# 穿梭框高级用法
+# 高级用法
 
-- order: 3
+- order: 2
 
-扩展样式
+高级用法
 
 ---
 
 ````jsx
-import { Transfer } from 'antd';
+import { Transfer, Button } from 'antd';
 const container = document.getElementById('components-transfer-demo-advanced');
 
-ReactDOM.render(<Transfer />, container);
+const App = React.createClass({
+  getInitialState() {
+    return {
+      mockData: []
+    };
+  },
+
+  componentDidMount() {
+    this.getMock();
+  },
+
+  getMock() {
+    let mockData = [];
+    for (let i = 0; i < 20; i++) {
+      mockData.push({
+        title: '内容' + (i + 1),
+        value: (i + 1),
+        description: '内容' + (i + 1) + '的描述',
+        chosen: Math.random() * 2 > 1
+      });
+    }
+    this.setState({
+      mockData: mockData
+    });
+  },
+  render() {
+    return <div>
+      <Transfer defaultDataSource={this.state.mockData} />
+      <Button onClick={this.getMock}>刷新数据</Button>
+    </div>;
+  }
+});
+
+ReactDOM.render(<App />, container);
 ````

components/transfer/demo/basic.md

@@ -23,7 +23,7 @@ const App = React.createClass({
 
   getMock() {
     let mockData = [];
-    for (let i = 0; i < 10; i++) {
+    for (let i = 0; i < 20; i++) {
       mockData.push({
         title: '内容' + (i + 1),
         value: (i + 1),