Update README.md

Author: jose-blockchain

README.md

@@ -255,12 +255,11 @@ This project is licensed under the MIT License - see the [LICENSE](LICENSE) file
 
 ## Roadmap
 
+- [X] Advanced consensus mechanisms (PBFT)
 - [ ] Smart contract support
-- [ ] Advanced consensus mechanisms (PBFT, HotStuff)
-- [ ] Cross-chain interoperability
 - [ ] Enhanced monitoring and metrics
 - [ ] WebAssembly runtime integration
 
 ---
 
-For more information, visit our [documentation](https://docs.rs/chaincraft-rust) or [repository](https://github.com/chaincraft-org/chaincraft-rust). 
+For more information, visit our [documentation](https://docs.rs/chaincraft-rust) or [repository](https://github.com/chaincraft-org/chaincraft-rust).