add license info to readme

README.md

@@ -1,3 +1,16 @@
 # bevy-jam-5
 
-The theme is **cycles**
+The theme is **cycles**
+
+
+## License
+
+Code in this repository is dual-licensed under either:
+
+  - MIT License ([LICENSE-MIT](LICENSE-MIT)), or
+  - Apache License, v2.0 ([LICENSE-APACHE](LICENSE-APACHE))
+
+at your preference.
+
+Assets are licensed under licensed under [CC BY 4.0](http://creativecommons.org/licenses/by/4.0/).
+