1a695df60b
- Revised and expanded the documentation to align with the ÖTO 2026 rulebook. - Clarified distinctions between Turnierkategorien and Bewerbsklassen with updated hierarchies and definitions. - Added tables summarizing class limits, mandatory requirements, and references for both Springen (CSN) and Dressur (CDN). - Introduced a new section on C-NEU category rules, including validation constraints for entry-level tournaments. Signed-off-by: Stefan Mogeritsch <stefan.mo.co@gmail.com>