docs: update moment locale usage

components/date-picker/index.en-US.md

@@ -35,9 +35,9 @@ import locale from 'antd/lib/date-picker/locale/zh_CN';
 
 ```jsx
 // The default locale is en-US, if you want to use other locale, just set locale in entry file globaly.
-// import moment from 'moment';
-// import 'moment/locale/zh-cn';
-// moment.locale('zh-cn');
+import moment from 'moment';
+import 'moment/src/locale/zh-cn';
+// import 'moment/locale/zh-cn'; if you are using webpack 1
 
 <DatePicker defaultValue={moment('2015-01-01', 'YYYY-MM-DD')} />
 ```

components/date-picker/index.zh-CN.md

@@ -36,9 +36,9 @@ import locale from 'antd/lib/date-picker/locale/zh_CN';
 
 ```jsx
 // 默认语言为 en-US，如果你需要设置其他语言，推荐在入口文件全局设置 locale
-// import moment from 'moment';
-// import 'moment/locale/zh-cn';
-// moment.locale('zh-cn');
+import moment from 'moment';
+import 'moment/src/locale/zh-cn';
+// import 'moment/locale/zh-cn'; if you are using webpack 1
 
 <DatePicker defaultValue={moment('2015-01-01', 'YYYY-MM-DD')} />
 ```

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

@@ -14,7 +14,8 @@ title: LocaleProvider
 ```jsx
 import { LocaleProvider } from 'antd';
 import fr_FR from 'antd/lib/locale-provider/fr_FR';
-import 'moment/locale/fr';
+import 'moment/src/locale/fr';
+// import 'moment/locale/fr'; if you are using webpack 1
 
 ...
 

components/locale-provider/index.zh-CN.md

@@ -15,7 +15,8 @@ LocaleProvider 使用 React 的 [context](https://facebook.github.io/react/docs/
 ```jsx
 import { LocaleProvider } from 'antd';
 import zh_CN from 'antd/lib/locale-provider/zh_CN';
-import 'moment/locale/zh-cn';
+import 'moment/src/locale/zh-cn';
+// import 'moment/locale/zh-cn'; if you are using webpack 1
 
 ...