update zh-cn/device-dev/website.md.

Signed-off-by: Nduangavin123 <duanxichao@huawei.com>
Signed-off-by: Nduangavin123 <duanxichao@huawei.com>

zh-cn/device-dev/website.md

@@ -633,38 +633,38 @@
 
 - 设备开发示例
 
-  -     轻量和小型系统设备
-        - WLAN连接类产品
-          - [LED外设控制](guide/device-wlan-led-control.md)
-          - [集成三方SDK](guide/device-wlan-sdk.md)
-        - 无屏摄像头类产品
-          - 摄像头控制
-            - [概述](guide/device-iotcamera-control-overview.md)
-            - 示例开发
-              - [拍照开发指导](guide/device-iotcamera-control-demo-photodevguide.md)
-              - [录像开发指导](guide/device-iotcamera-control-demo-videodevguide.md)
-            - [应用实例](guide/device-iotcamera-control-example.md)
-        - 带屏摄像头类产品
-          - 屏幕和摄像头控制
-            - [概述](guide/device-camera-control-overview.md)
-            - 示例开发
-              - [拍照开发指导](guide/device-camera-control-demo-photoguide.md)
-              - [录像开发指导](guide/device-camera-control-demo-videoguide.md)
-              - [预览开发指导](guide/device-camera-control-demo-previewguide.md)
-            - [应用实例](guide/device-camera-control-example.md)
-          - 视觉应用开发
-            - [概述](guide/device-camera-visual-overview.md)
-            - [开发准备](guide/device-camera-visual-prepare.md)
-            - [添加页面](guide/device-camera-visual-addpage.md)
-            - [开发首页](guide/device-camera-visual-firstpage.md)
-            - [开发详情页](guide/device-camera-visual-details.md)
-            - [调试打包](guide/device-camera-visual-debug.md)
-            - [真机运行](guide/device-camera-visual-run.md)
-            - [常见问题](guide/device-camera-visual-faqs.md)
-  -     标准系统设备
-        - [时钟应用开发指导](guide/device-clock-guide.md)
-        - [平台驱动开发示例](guide/device-driver-demo.md)
-        - [外设驱动开发示例](guide/device-outerdriver-demo.md)
+  - 轻量和小型系统设备
+    - WLAN连接类产品
+      - [LED外设控制](guide/device-wlan-led-control.md)
+      - [集成三方SDK](guide/device-wlan-sdk.md)
+    - 无屏摄像头类产品
+      - 摄像头控制
+        - [概述](guide/device-iotcamera-control-overview.md)
+        - 示例开发
+          - [拍照开发指导](guide/device-iotcamera-control-demo-photodevguide.md)
+          - [录像开发指导](guide/device-iotcamera-control-demo-videodevguide.md)
+        - [应用实例](guide/device-iotcamera-control-example.md)
+    - 带屏摄像头类产品
+      - 屏幕和摄像头控制
+        - [概述](guide/device-camera-control-overview.md)
+        - 示例开发
+          - [拍照开发指导](guide/device-camera-control-demo-photoguide.md)
+          - [录像开发指导](guide/device-camera-control-demo-videoguide.md)
+          - [预览开发指导](guide/device-camera-control-demo-previewguide.md)
+        - [应用实例](guide/device-camera-control-example.md)
+      - 视觉应用开发
+        - [概述](guide/device-camera-visual-overview.md)
+        - [开发准备](guide/device-camera-visual-prepare.md)
+        - [添加页面](guide/device-camera-visual-addpage.md)
+        - [开发首页](guide/device-camera-visual-firstpage.md)
+        - [开发详情页](guide/device-camera-visual-details.md)
+        - [调试打包](guide/device-camera-visual-debug.md)
+        - [真机运行](guide/device-camera-visual-run.md)
+        - [常见问题](guide/device-camera-visual-faqs.md)
+  - 标准系统设备
+    - [时钟应用开发指导](guide/device-clock-guide.md)
+    - [平台驱动开发示例](guide/device-driver-demo.md)
+    - [外设驱动开发示例](guide/device-outerdriver-demo.md)
 
 
 - 调测