Update CHANGELOG.md

Author: williamdes

CHANGELOG.md

@@ -8,9 +8,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 - Move docker-compose test files into a folder
 - Fix the section about E2E tests in `README.md`
-- Support docker secrets from file for `PMA_USER`
-- Support docker secrets from file for `PMA_CONTROLUSER`
-- Support docker secrets from file for `PMA_CONTROLHOST`
+- Support docker secrets from file for `PMA_USER` (#372)
+- Support docker secrets from file for `PMA_CONTROLUSER` (#372)
+- Support docker secrets from file for `PMA_CONTROLHOST` (#372)
+- Allow a different Apache port with `APACHE_PORT` (#340)
 
 ## [5.1.4] - 2022-05-11