ECA reference

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index fa96d344918a6e074e23d0fc52651f60bab63509..a90ea46fa1e97ff1fe5d6ad6cd5aef28ee0237ca 100644 (file)
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -48,4 +48,6 @@ Some issues involving compiler problems, for example if Java code isn't working
 
 ## Contributions
 
-Please contribute via Pull Request against the GitHub repository.
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+Please contribute via Pull Request against the GitHub repository.
+
+Contributors should ensure they have signed the [Eclipse Contributor Agreement](https://accounts.eclipse.org/user/7644/eca/3.1.0), this will be verified by automatic validation that occurs against any Pull Requests.
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