- Updated `config.ini.example`, `command-reference.md`, and `configuration.md` to clarify the use of APScheduler for cron scheduling, emphasizing the difference in day-of-week numbering compared to Vixie cron.
- Added examples and notes to prevent confusion regarding the interpretation of cron expressions, particularly for users transitioning from Vixie cron conventions.
- Enhanced documentation to guide users in using the correct syntax for scheduling messages, ensuring better understanding and usability.