docs: update demo

Author: tangjinzhou

components/card/demo/concise.md

@@ -1,7 +1,6 @@
 <script>
 import Basic from './basic.md'
 import BorderLess from './border-less.md'
-import Concise from './concise.md'
 import FlexibleContent from './flexible-content.md'
 import GridCard from './grid-card.md'
 import InColumn from './in-column.md'
@@ -43,7 +42,6 @@ export default {
         <md cn={md.cn} us={md.us} />
         <Basic/>
         <BorderLess/>
-        <Concise/>
         <FlexibleContent/>
         <GridCard/>
         <InColumn/>

components/card/demo/index.vue

@@ -1,11 +1,11 @@
 
 <cn>
-#### 确认对话框
+#### 确认对话框(promise)
 使用 `confirm()` 可以快捷地弹出确认框。onCancel/onOk 返回 promise 可以延迟关闭
 </cn>
 
 <us>
-#### Confirmation modal dialog
+#### Confirmation modal dialog use promise
 To use `confirm()` to popup confirmation modal dialog. Let onCancel/onOk function return a promise object to
 delay closing the dialog.
 </us>

components/modal/demo/confirm-promise.md

@@ -14,7 +14,7 @@
       <slot v-if="isZhCN" name="description"></slot>
       <slot v-else name="us-description"></slot>
       <span class="btn-toggle" :class="{open: isOpen}" @click="toggle">
-        <a-icon type="down" />
+        <a-icon type="up" />
       </span>
     </section>
     <transition appear :css="false" @enter="enter" @leave="leave">