udpated docs

Signed-off-by: Nwusongqing <wusongqing@huawei.com>

en/device-dev/kernel/kernel-mini.md

+# Kernel for Mini Systems<a name="EN-US_TOPIC_0000001124663064"></a>
+
+-   **[Kernel Overview](kernel-mini-overview.md)**  
+
+-   **[Basic Kernel](kernel-mini-basic.md)**  
+
+-   **[Extension Components](kernel-mini-extend.md)**  
+
+-   **[Kernel Debugging](kernel-memory-inner.md)**  
+
+-   **[Appendix](kernel-mini-app.md)**  
+
+

en/device-dev/kernel/kernel-small.md

+# Kernel for Small Systems<a name="EN-US_TOPIC_0000001171191693"></a>
+
+-   **[Kernel Overview](kernel-small-overview.md)**  
+
+-   **[Kernel Startup](kernel-small-start.md)**  
+
+-   **[Basic Kernel](kernel-small-basics.md)**  
+
+-   **[Extension Components](kernel-small-bundles.md)**  
+
+-   **[Debugging and Tools](kernel-small-debug.md)**  
+
+-   **[Appendix](kernel-small-apx.md)**  
+
+

zh-cn/contribute/贡献指南.md

-# 贡献指南<a name="ZH-CN_TOPIC_0000001053389134"></a>
-
--   **[参与贡献](参与贡献.md)**  
-
--   **[行为准则](行为准则.md)**  
-
--   **[贡献代码](贡献代码.md)**  
-
--   **[贡献流程](贡献流程.md)**  
-
--   **[FAQ](FAQ.md)**  
-
--   **[贡献文档](贡献文档.md)**  
-
--   **[写作规范](写作规范.md)**  
-
--   **[社区沟通与交流](社区沟通与交流.md)**  
-
-