Update README.md

README.md

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 # esp-hal-community
+
+![GitHub Actions Workflow Status](https://img.shields.io/github/actions/workflow/status/esp-rs/esp-hal-community/ci.yml?labelColor=1C2C2E&label=CI&logo=github&style=flat-square)
+![MIT/Apache-2.0 licensed](https://img.shields.io/badge/license-MIT%2FApache--2.0-blue?labelColor=1C2C2E&style=flat-square)
+[![Matrix](https://img.shields.io/matrix/esp-rs:matrix.org?labelColor=1C2C2E&label=join%20matrix&color=BEC5C9&logo=matrix&style=flat-square)](https://matrix.to/#/#esp-rs:matrix.org)
+
+A collection of crates for use alongside [esp-hal], but which are maintained by the community.
+
+[esp-hal]: https://github.com/esp-rs/esp-hal/
+
+## License
+
+Licensed under either of:
+
+- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+- MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution notice
+
+Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in
+the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without
+any additional terms or conditions.