Initial commit

Much of the content here is a direct port from https://github.com/japaric/discovery

README.md

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+# MicroRust
+
+> Learn embedded software in Rust on the micro:bit
+
+## License
+
+The documentation is licensed under
+
+- Creative Commons Attribution 4.0 License ([LICENSE-CC-BY](LICENSE-CC-BY)
+  or https://creativecommons.org/licenses/by/4.0/legalcode)
+
+And the source code is 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
+  https://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+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
+licensed as above, without any additional terms or conditions.