Add statement from Commonhaus about U.S. laws and regulations to CONTRIBUTING.md

Author: marko-bekhta

contribute.md

@@ -30,6 +30,12 @@ modified, such other license.
 All contributions are subject to the [Developer Certificate of Origin (DCO)](https://developercertificate.org/).
 The DCO text is also included verbatim in the [dco.txt](./dco.txt) file in the root directory of the repository.
 
+### Compliance with Laws and Regulations
+
+All contributions must comply with applicable laws and regulations, including U.S. export control and sanctions restrictions.
+For background, see the Linux Foundation’s guidance:
+[Navigating Global Regulations and Open Source: US OFAC Sanctions](https://www.linuxfoundation.org/blog/navigating-global-regulations-and-open-source-us-ofac-sanctions).
+
 ## Reporting an issue
 
 This project uses the [Hibernate Tools JIRA](https://hibernate.atlassian.net/projects/HBX/summary) to manage bugs and feature requests. Open an issue directly in JIRA.
@@ -57,4 +63,4 @@ Rebase your topic branch against the current master branch if necessary (`git re
 
 ## The small print
 
-This project is an open source project, please act responsibly, be nice, polite and enjoy!
+This project is an open source project, please act responsibly, be nice, polite and enjoy!