add contributing info to the readme
Signed-off-by: Lukas Jungmann <lukas.jungmann@oracle.com>
diff --git a/README.md b/README.md
index 4bffcde..f3c01e0 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,8 @@
Jakarta Annotations uses a [Java Platform Module System](http://openjdk.java.net/projects/jigsaw/spec/)
module name `jakarta.annotation`.
+
+## Contributing
+
+We use [contribution policy](CONTRIBUTING.md), which means we can only accept contributions under
+the terms of [Eclipse Contributor Agreement](http://www.eclipse.org/legal/ECA.php).
