docs(empty): docs empty (#406)

* fix: export icon slot

* docs: add empty docs

* Apply suggestions from code review

* Update src/empty/demos/enUS/size.demo.md

Co-authored-by: 07akioni <07akioni2@gmail.com>

* Update src/empty/demos/zhCN/size.demo.md

Co-authored-by: 07akioni <07akioni2@gmail.com>

Co-authored-by: 07akioni <07akioni2@gmail.com>

src/empty/demos/enUS/icon.demo.md

@@ -0,0 +1,27 @@
+# Icon
+
+Customize icon in empty.
+
+```html
+<n-empty description="Custom your icon">
+  <template #icon>
+    <n-icon>
+      <ios-airplane />
+    </n-icon>
+  </template>
+  <template #extra>
+    <n-button size="small">Find Something New</n-button>
+  </template>
+</n-empty>
+```
+
+```js
+import { IosAirplane } from '@vicons/ionicons4'
+import { defineComponent } from 'vue'
+
+export default defineComponent({
+  components: {
+    IosAirplane
+  }
+})
+```

src/empty/demos/enUS/index.demo-entry.md

@@ -6,19 +6,22 @@ E<span style="opacity: 0;">mpt</span>y.
 
 ```demo
 basic
+icon
+size
 ```
 
 ## Props
 
 | Name | Type | Default | Description |
 | --- | --- | --- | --- |
-| description | `string` | `'No Data'` |  |
-| show-description | `boolean` | `true` |  |
-| size | `'small' \| 'medium' \| 'large' \| 'huge'` | `'medium'` |  |
+| description | `string` | `'No Data'` | Description of the empty. |
+| show-description | `boolean` | `true` | Whether to show description of empty. |
+| size | `'small' \| 'medium' \| 'large' \| 'huge'` | `'medium'` | Empty's size. |
 
 ## Slots
 
 | Name    | Parameters | Description                  |
 | ------- | ---------- | ---------------------------- |
 | default | `()`       | In place of description prop |
-| extra   | `()`       |                              |
+| extra   | `()`       | Extra content.               |
+| icon    | `()`       | Custom icon.                 |

src/empty/demos/enUS/size.demo.md

@@ -0,0 +1,11 @@
+# Size
+
+Empty can be `small`, `medium`, `large` and `huge` size.
+
+```html
+<n-empty size="large" description="can be large">
+  <template #extra>
+    <n-button size="small">Find Something New</n-button>
+  </template>
+</n-empty>
+```

src/empty/demos/zhCN/icon.demo.md

@@ -0,0 +1,27 @@
+# 图标
+
+自定义图标。
+
+```html
+<n-empty description="是一个飞机">
+  <template #icon>
+    <n-icon>
+      <ios-airplane />
+    </n-icon>
+  </template>
+  <template #extra>
+    <n-button size="small">看看别的</n-button>
+  </template>
+</n-empty>
+```
+
+```js
+import { IosAirplane } from '@vicons/ionicons4'
+import { defineComponent } from 'vue'
+
+export default defineComponent({
+  components: {
+    IosAirplane
+  }
+})
+```

src/empty/demos/zhCN/index.demo-entry.md

@@ -6,19 +6,22 @@
 
 ```demo
 basic
+icon
+size
 ```
 
 ## Props
 
 | 名称 | 类型 | 默认值 | 说明 |
 | --- | --- | --- | --- |
-| description | `string` | `'无数据'` |  |
-| show-description | `boolean` | `true` |  |
-| size | `'small' \| 'medium' \| 'large' \| 'huge'` | `'medium'` |  |
+| description | `string` | `'无数据'` | 描述信息 |
+| show-description | `boolean` | `true` | 是否展示描述信息 |
+| size | `'small' \| 'medium' \| 'large' \| 'huge'` | `'medium'` | 尺寸大小 |
 
 ## Slots
 
 | 名称    | 参数 | 说明             |
 | ------- | ---- | ---------------- |
 | default | `()` | 代替 description |
-| extra   | `()` |                  |
+| extra   | `()` | 扩展的内容       |
+| icon    | `()` | 自定义图标       |

src/empty/demos/zhCN/size.demo.md

@@ -0,0 +1,11 @@
+# 尺寸
+
+有 `small`、`medium`、`large` 和 `huge` 尺寸。
+
+```html
+<n-empty size="large" description="可以是大的">
+  <template #extra>
+    <n-button size="small">看看别的</n-button>
+  </template>
+</n-empty>
+```