docs: Add AI Contribution policy to README

Author: sarina

README.rst

@@ -293,6 +293,11 @@ Code of Conduct
 
 Please read the `Community Code of Conduct`_ for interacting with this repository.
 
+AI Contribution Policy
+**********************
+
+Note that contributions are expected to follow the Open edX `AI Contribution Policy`_.
+
 Reporting Security Issues
 *************************
 
@@ -302,6 +307,7 @@ [email protected].
 .. _individual contributor agreement: https://openedx.org/cla
 .. _CONTRIBUTING: https://github.com/openedx/.github/blob/master/CONTRIBUTING.md
 .. _Community Code of Conduct: https://openedx.org/code-of-conduct/
+.. _AI Contribution Policy: https://github.com/openedx/.github/blob/master/AI_POLICY.md
 
 People
 ******