Adds a Copilot CLI skill that teaches absolute beginners how to use
GitHub Copilot CLI through guided, interactive lessons right in the
terminal. Features:
- Dual-track learning: Developer (8 lessons) and Non-Developer (7 lessons)
- Interactive exercises using ask_user
- SQL-based progress tracking
- On-demand Q&A with live doc fetching
- Beginner-friendly with CLI glossary and fallback handling
Source repo: https://github.com/DUBSOpenHub/copilot-cli-quickstart
