Minor updates to the release doc (#33650)

Author: ephraimbuddy

dev/README_RELEASE_AIRFLOW.md

@@ -827,7 +827,8 @@ Documentation for providers can be found in the ``/docs/apache-airflow`` directo
 
     ```shell script
     breeze release-management publish-docs --package-filter apache-airflow --package-filter docker-stack
-    breeze release-management add-back-references apache-airflow
+    breeze release-management add-back-references apache-airflow --airflow-site-directory "${AIRFLOW_SITE_DIRECTORY}"
+    cd "${AIRFLOW_SITE_DIRECTORY}"
     git add .
     git commit -m "Add documentation for Apache Airflow ${VERSION}"
     git push
@@ -971,7 +972,7 @@ EOF
 This includes:
 
 - Modify `./scripts/ci/pre_commit/pre_commit_supported_versions.py` and let pre-commit do the job.
-- For major/minor release, update version in `airflow/__main__.py`, `docs/docker-stack/` and `airflow/api_connexion/openapi/v1.yaml` to the next likely minor version release.
+- For major/minor release, update version in `airflow/__init__.py`, `docs/docker-stack/` and `airflow/api_connexion/openapi/v1.yaml` to the next likely minor version release.
 - Sync `RELEASE_NOTES.rst` (including deleting relevant `newsfragments`) and `README.md` changes.
 - Updating `Dockerfile` with the new version.
 - Updating `airflow_bug_report.yml` issue template in `.github/ISSUE_TEMPLATE/` with the new version.