Introduce detailed documentation on how input works for agents, including flow, formats, examples, validation, and testing procedures. Update references in the README and agents documentation to link to this new resource.
Added a "Setup" section with a link to installation instructions in the README for improved usability. Also adjusted the license text for consistency and deleted the empty `gitleaks-report.json` file as it was unnecessary.
This commit introduces detailed documentation files, including installation, configuration, API, agents, and an index. It also updates the README with new sections and registers the MIT license for the project. These changes aim to improve clarity and ease of use for developers and contributors.
