update the release notes

Author: Ziqun Ye

docs/source/release_notes.rst

@@ -10,6 +10,7 @@ Release date: January 18, 2023
 * Added ``--job-info`` option to ``ads opctl run`` CLI to save job run information to a YAML file.
 * Added the `AuthContext <./ads.common.html#ads.common.auth.OCIAuthContext>`__ class. It supports API key configuration, resource principal, and instance principal authentication. In addition, predefined signers, callable signers, or API keys configurations from specified locations.
 * Added `restart_deployment() <./ads.model.html#ads.model.generic_model.GenericModel.restart_deployment>`__ method to the :doc:`framework-specific <./user_guide/model_registration/framework_specific_instruction>` classes. Update model deployment associated with the model.
+* Added `activate() <./ads.catalog.html#ads.catalog.model.Model.activate>`__ and `deactivate() <./ads.catalog.html#ads.catalog.model.Model.deactivate>`__ method to the `model deployment <./ads.catalog.html#ads.catalog.model.Model.deactivate>`__ classes.
 * Fixed a bug in ``to_sql()``. The string length for the column created in Oracle Database table was counting characters, not bytes.
 * Fixed a bug where any exception that occurred in a notebook cell printed "ADS Exception" even if the ADS code was not responsible for the error.