Added readme.

Author: SLiV9

README.md

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+# Keycode-rs
+
+A small utility crate for generating lossy unique ids encoded with base32,
+originally developed for the strategy game [Epicinium](https://epicinium.nl).
+
+## License
+
+This library was created by Sander in 't Veld as part of A Bunch of Hacks.
+It is made available to you under the MIT License,
+as specified in `LICENSE.txt`.
+
+The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.
+
+## Related repositories
+
+*  [epicinium_server](https://github.com/abunchofhacks/Epicinium-server-rs), an asynchronous multiplayer server for Epicinium, written in Rust
+*  [Epicinium](https://github.com/abunchofhacks/Epicinium), the full source code for Epicinium