docs: LocaleProvider translation (#2532)

components/locale-provider/demo/all.md

@@ -1,10 +1,18 @@
 ---
 order: 2
-title: 所有组件
+title:
+  zh-CN: 所有组件
+  en-US: All components
 ---
 
+## zh-CN
+
 此处列出 Ant Design 中需要国际化支持的组件，你可以在演示里切换语言。
 
+## en-US
+
+Components which need localization support are listed here, you can toggle the language in the demo.
+
 ````jsx
 import { LocaleProvider, Pagination, DatePicker, TimePicker, Calendar,
          Popconfirm, Table, Modal, Button, Select, Transfer, Radio } from 'antd';

components/locale-provider/demo/basic.md

@@ -1,10 +1,18 @@
 ---
 order: 1
-title: 国际化
+title:
+  zh-CN: 国际化
+  en-US: Localization
 ---
 
+## zh-CN
+
 用 `LocaleProvider` 包裹你的应用，并引用对应的语言包。
 
+## en-US
+
+Wrap you app with `LocaleProvider`, and apply the corresponding language package.
+
 ````jsx
 import { Pagination, LocaleProvider } from 'antd';
 import enUS from 'antd/lib/locale-provider/en_US';

components/locale-provider/index.en-US.md

@@ -0,0 +1,35 @@
+---
+category: Components
+type: Other
+cols: 1
+title: LocaleProvider
+---
+
+`LocaleProvider` provides a uniform localization support for built-in text of components. 
+
+## Usage
+
+`LocaleProvider` takes use of [context](https://facebook.github.io/react/docs/context.html), a feature of React, to accomplish global effectiveness by wrapping the app only once.
+
+
+```jsx
+import enUS from 'antd/lib/locale-provider/en_US';
+
+...
+
+return <LocaleProvider locale={enUS}><App /></LocaleProvider>;
+```
+
+### Add a language
+
+We supply an English locale package. Other language users can create a locale package based on [en_US](https://github.com/ant-design/ant-design/blob/26b1f37392a278285aec6c573b99c6feea09e218/components/locale-provider/en_US.js) and send us a pull request.
+
+### Other localization needs
+
+This component aims for localization of the built-in text, if you want to support other documents, we recommend using [react-intl](https://github.com/yahoo/react-intl), refer to [Intl demo 1](http://github.com/ant-design/intl-example) and [Intl demo 2](http://yiminghe.me/learning-react/examples/react-intl.html?locale=en-US).
+
+## API
+
+Property | Description | Type | Default
+-----|-----|-----|------
+locale | language package setting, you can find the packages in this path: `antd/lib/locale-provider/` | Object | -