Merge pull request #556 from tsubasaogawa/chore/add-skills-folder

docs(readme): update directory structure to include skills folder

Author: aaronpowell

README.md

@@ -104,7 +104,8 @@ For AI coding agents working with this project, refer to [AGENTS.md](AGENTS.md)
 ├── instructions/     # Coding standards and best practices (.instructions.md)
 ├── agents/           # AI personas and specialized modes (.agent.md)
 ├── collections/      # Curated collections of related items (.collection.yml)
-└── scripts/          # Utility scripts for maintenance
+├── scripts/          # Utility scripts for maintenance
+└── skills/           # AI capabilities for specialized tasks
 ```
 
 ## 📄 License