🤖 add workflow change for images. (#5)

Signed-off-by: sealos-ci-robot <sealos-ci-robot@sealos.io>

Author: sealos-ci-robot

docs/aliyun-shanghai/README.md

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+# Cluster Image Directory
+
+Welcome to our documentation folder, where we list four distinct types of cluster images: Rootfs Images, Sealos-related Images, Laf-related Images, and Images for various applications.
+
+- [Rootfs Images](./rootfs.md)
+- [Sealos Images](./sealos.md)
+- [Laf Images](./laf.md)
+- [Application Images](./apps.md)
+
+Please navigate to the above links to access the detailed documentation for each image category.
+
+## Image Repository
+
+The images in this documentation are hosted on our dedicated image repository:  `registry.cn-shanghai.aliyuncs.com`
+