Gqnn

- Clarified Scope : Clearly mentions support for both Quantum Neural Networks (QNNs) and classical ML models .
- Feature List : Highlights main functionalities of the package.
- Improved Example Code : Makes it structured and practical for real-world use.
- Enhanced Formatting : Uses markdown-style headings for better readability.

- Fixed bugs in the `predict` method.
- Added `staticmethod` to `_callback_graph`.
- Improved the `fit` method to handle missing weights gracefully.
- Updated The `utils` Functionality

- Initial release with core functionality.