diff --git a/README.md b/README.md
index 01f91c7..b6ff641 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,16 @@
 
 Hopefully, a library enabling developers to build OMEMO-supporting
 XMPP clients in Dart and Flutter.
+
+**Please note that this library has not been audited for its security! Use at your own risk!**
+
+## Contributing
+
+When submitting a PR, please run the linter using `dart analyze` and make sure that all
+tests still pass using `dart test`.
+
+## License
+
+Licensed under the MIT license.
+
+See `LICENSE`.