adjust changelog entry

Author: xeniape

CHANGELOG.md

@@ -12,7 +12,7 @@
 - Document Helm deployed RBAC permissions and remove unnecessary permissions ([#767], [#774]).
 - BREAKING: `configOverrides` now only accepts the known config file `webserver_config.py`. Previously, arbitrary file names were silently accepted and ignored ([#775]).
 - Bump `stackable-operator` to 0.110.1, kube to 3.1.0, and snafu to 0.9 ([#775]).
-- BREAKING: Renaming `EXPERIMENTAL_FILE_HEADER` and `EXPERIMENTAL_FILE_FOOTER` in `webserver_config.py` for arbitrary python code to `FILE_HEADER` and `FILE_FOOTER`  ([]).
+- BREAKING: Rename `EXPERIMENTAL_FILE_HEADER` and `EXPERIMENTAL_FILE_FOOTER` in `webserver_config.py` for arbitrary python code to `FILE_HEADER` and `FILE_FOOTER`  ([#777]).
 
 ### Fixed
 
@@ -24,6 +24,7 @@
 [#770]: https://github.com/stackabletech/airflow-operator/pull/770
 [#774]: https://github.com/stackabletech/airflow-operator/pull/774
 [#775]: https://github.com/stackabletech/airflow-operator/pull/775
+[#777]: https://github.com/stackabletech/airflow-operator/pull/777
 
 ## [26.3.0] - 2026-03-16