#150: Update CONTRIBUTING.md for Specification Project's repositories

Signed-off-by: Lukas Jungmann <lukas.jungmann@oracle.com>

CONTRIBUTING.md

-[//]: # " Copyright (c) 2018, 2019 Oracle and/or its affiliates. All rights reserved. "
+[//]: # " Copyright (c) 2018, 2020 Oracle and/or its affiliates. All rights reserved. "
 [//]: # "  "
 [//]: # " This program and the accompanying materials are made available under the "
 [//]: # " terms of the Eclipse Distribution License v. 1.0, which is available at "
@@ -45,6 +45,21 @@ Contributor Agreement (ECA) on file.
 For more information, please see the Eclipse Committer Handbook:
 https://www.eclipse.org/projects/handbook/#resources-commit
 
+## Eclipse Development Process
+
+This Eclipse Foundation open project is governed by the Eclipse Foundation
+Development Process and operates under the terms of the Eclipse IP Policy.
+
+The Jakarta EE Specification Committee has adopted the Jakarta EE Specification
+Process (JESP) in accordance with the Eclipse Foundation Specification Process
+v1.2 (EFSP) to ensure that the specification process is complied with by all
+Jakarta EE specification projects.
+
+* https://eclipse.org/projects/dev_process
+* https://www.eclipse.org/org/documents/Eclipse_IP_Policy.pdf
+* https://jakarta.ee/about/jesp/
+* https://www.eclipse.org/legal/efsp_non_assert.php
+
 ## Contact
 
 Contact the project developers via the project's "dev" list.