add release notes

Author: jljsj33

site/edit/en-US.js

@@ -126,5 +126,8 @@ module.exports = {
     'app.login.title': 'This page is locked. Please enter your password.',
     'app.login.noPassword': 'If you don\'t know the password, please delete current page or create a new page',
     'app.login.new': 'New Page',
+    'app.layout.notification.title': '3.0 Release Notes',
+    'app.layout.notification.content1': '3.0 It has been officially released. Since we have made some adjustments to some templates, if your previously edited templates can not be displayed, please go to ',
+    'app.layout.notification.content2': 'submit your page ID and JSON data.',
   },
 };

site/edit/template/layout.jsx

@@ -1,5 +1,6 @@
 import React from 'react';
-import { Icon, message, Button, Input, Form } from 'antd';
+import PropTypes from 'prop-types';
+import { Icon, message, Button, Input, Form, notification } from 'antd';
 import { connect } from 'react-redux';
 import { FormattedMessage } from 'react-intl';
 
@@ -20,15 +21,35 @@ import EditListController from './components/EditListController';
 const FormItem = Form.Item;
 
 class Layout extends React.PureComponent {
+  static contextTypes = {
+    intl: PropTypes.object.isRequired,
+  };
+
   state = {
     loading: false,
   }
 
-  componentWillMount() {
-    const { dispatch } = this.props;
+  constructor(props) {
+    super(props);
+    const { dispatch } = props;
     dispatch(actions.getUserData());
   }
 
+  componentDidMount() {
+    notification.open({
+      placement: 'bottomRight',
+      duration: null,
+      message: this.context.intl.formatMessage({ id: 'app.layout.notification.title' }),
+      description: (
+        <div>
+          {this.context.intl.formatMessage({ id: 'app.layout.notification.content1' })}
+          <a href="https://github.com/ant-design/ant-design-landing/issues" target="_blank"> GitHub issues </a>
+          {this.context.intl.formatMessage({ id: 'app.layout.notification.content2' })}
+        </div>
+      ),
+    });
+  }
+
   componentDidUpdate() {
     if (!this.validateForm && this.props.templateData.data) {
       this.props.form.validateFields();

site/edit/zh-CN.js

@@ -127,6 +127,8 @@ module.exports = {
     'app.login.title': '此页面已加锁，请输入密码。',
     'app.login.noPassword': '不知道密码请删除当前面页或新建',
     'app.login.new': '新建页面',
-
+    'app.layout.notification.title': '3.0 发布说明',
+    'app.layout.notification.content1': '3.0 已正式发布，由于我们对有些模板做了调整，如果你以前编辑的模板不能显示，请到 ',
+    'app.layout.notification.content2': '提交你的页面 id 与 JSON 数据。',
   },
 };