docs: append new QA pairs to FAQ (#228)

Co-authored-by: AI Assistant <bot@example.com>

docs/skillhub/en/faq.md

@@ -124,6 +124,18 @@ curl -fsSL https://imageless.oss-cn-beijing.aliyuncs.com/runtime.sh | sh -s -- u
 
 > **Note**: It is recommended to back up the database and object storage before upgrading. Database migrations are handled automatically by Flyway.
 
+## Q: Why can't administrators (admin) and regular users create namespaces?
+
+A: Older versions of SkillHub do not support creating namespaces, as this feature was introduced in later updates. Please upgrade your SkillHub instance to the latest version (`latest`).
+Upgrade command example:
+```bash
+curl -fsSL https://imageless.oss-cn-beijing.aliyuncs.com/runtime.sh | sh -s -- up --version latest
+```
+
+## Q: How do I search for or operate on a skill package within a specific namespace?
+
+A: When using the OpenClaw CLI, you can specify the namespace using the `<namespace>--<skill-name>` format for operations like search or installation. If you encounter issues finding it on the web interface, you can also manage it by exporting the skill package and importing it into your target namespace.
+
 ## Q: What should I do if I encounter issues?
 
 A: You can get help through the following channels:

docs/skillhub/faq.md

@@ -124,6 +124,18 @@ curl -fsSL https://imageless.oss-cn-beijing.aliyuncs.com/runtime.sh | sh -s -- u
 
 > **注意**：升级前建议先备份数据库和对象存储。数据库迁移由 Flyway 自动执行。
 
+## Q: 为什么管理员（admin）和普通用户都无法创建命名空间？
+
+A: 较旧版本的 SkillHub 不支持创建命名空间。该功能是在后续版本迭代中添加的。请将您的 SkillHub 升级到最新版本（latest）。
+升级命令示例：
+```bash
+curl -fsSL https://imageless.oss-cn-beijing.aliyuncs.com/runtime.sh | sh -s -- up --version latest
+```
+
+## Q: 如何搜索或操作指定命名空间中的技能包（Skill）？
+
+A: 使用 OpenClaw CLI 命令行工具时，可以通过 `<namespace>--<skill-name>` 的格式来指定命名空间进行操作（例如搜索、安装）。如果在网页端搜索遇到问题，也可以尝试通过先导出技能、再导入到目标命名空间的方式来完成跨空间操作。
+
 ## Q: 遇到问题怎么办？
 
 A: 可以通过以下方式获取帮助：