docs(readme): add comprehensive README with setup and usage instructions

- Add a Traditional Chinese README file with detailed instructions and features
- Include installation steps for macOS, Windows, and from source
- Provide configuration details for setting up OpenAI API keys and other options
- Explain how to switch to different API providers like Azure, Gemini, Groq, Ollama, and OpenRouter
- Describe CLI mode and Git hook integration for generating commit messages
- Add instructions for customizing commit message templates
- Include code review functionality and translation options
- Provide testing commands and star history chart
- Add references for OpenAI Chat completions and related APIs

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>