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README.md

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-# subcoin
-Bitcoin Node in Substrate
+# Subcoin: Bitcoin Full Node in Substrate
+
+[![Continuous integration](https://github.com/subcoin-project/subcoin/actions/workflows/ci.yml/badge.svg)](https://github.com/subcoin-project/subcoin/actions/workflows/ci.yml)
+
+> [!WARNING]
+>
+> Subcoin is currently in its early development stages and is not yet ready for production use.
+> See [the disclaimer below](#disclaimer).
+
+## Overview
+
+Subcoin is a full node implementation of Bitcoin in Rust, built using the Substrate framework.
+By leveraging Substrate's modular and flexible architecture, Subcoin aims to offer a robust
+and performant implementation of Bitcoin protocol.
+
+Currently, Subcoin only implements the feature of syncing as a full node. It is not yet capable
+of participating in the Bitcoin consensus as a miner node. Additional features are in the
+planning stages.
+
+## Pros
+
+- 🔄 **Fast Sync**. Employs Substrate's advanced state sync strategy, enabling Bitcoin fast sync
+by downloading all headers and the state at a specific block.
+- 🔗 **Substrate Integration**: Utilizes Substrate framework provide production-level blockchain infrastructures.
+
+## Disclaimer
+
+**Do not use Subcoin in production.** It is a heavy work in progress, not feature-complete and the code
+has not been audited as well. Use at your own risk.
+
+## Contributing
+
+Contributions to Subcoin are welcome! If you have ideas for improvements, bug fixes, or new features,
+feel free to open an issue or submit a pull request. Make sure to follow the contribution guidelines
+and code of conduct when contributing to the project.
+
+## License
+
+Subcoin is licensed under the [MIT License](LICENSE). See the LICENSE file for information.