Update README.org

Author: sarah-dietrich1

README.org

@@ -50,6 +50,9 @@ A. Bernath, J. Seuffert, S. Dietrich, N. Poppe, D. Magagnato, F. Wittemann, F. H
   Whenever you add Content to this repository, you license that Content under the terms defined in the license in the repository, and you agree that you have the right to license that Content under those terms. If you have a separate agreement to license that Content under different terms, such as a contributor license agreement, that agreement will supersede.
   Isn't this just how it works already? Yep. This is widely accepted as the norm in the open-source community; it's commonly referred to by the shorthand "inbound=outbound". We're just making it explicit.
 
+** Disclaimer
+This offering is not approved or endorsed by OpenCFD Limited, producer and distributor of the OpenFOAM software via www.openfoam.com, and owner of the OPENFOAM® and OpenCFD® trade marks.
+
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