Fix select demo

components/select/demo/combobox.md

@@ -12,7 +12,7 @@ const Option = Select.Option;
 const Test = React.createClass({
   getInitialState() {
     return {
-      options: []
+      options: [],
     };
   },
   handleChange(value) {

components/select/demo/search-box.md

@@ -80,7 +80,7 @@ const SearchInput = React.createClass({
         <Select
           combobox
           value={this.state.value}
-          searchPlaceholder={this.props.placeholder}
+          placeholder={this.props.placeholder}
           notFoundContent=""
           defaultActiveFirstOption={false}
           showArrow={false}

components/select/demo/search.md

@@ -3,7 +3,7 @@ order: 1
 title: 带搜索框
 ---
 
-在浮层内顶部有搜索框的单项选择器。
+展开后可对选项进行搜索。
 
 ````jsx
 import { Select } from 'antd';

site/component/Header/index.jsx

@@ -95,7 +95,7 @@ export default class Header extends React.Component {
             <div id="search-box">
               <Select combobox
                 dropdownClassName="component-select"
-                searchPlaceholder="搜索组件..."
+                placeholder="搜索组件..."
                 value={undefined}
                 optionFilterProp="data-label"
                 filterOption={this.handleSelectFilter}