GET /api/rule-sections/{index}

The `index` of the rule section to get.

Constraints: {'enum': ['ability-checks', 'ability-scores-and-modifiers', 'actions-in-combat', 'advantage-and-disadvantage', 'between-adventures', 'casting-a-spell', 'cover', 'damage-and-healing', 'diseases', 'fantasy-historical-pantheons', 'madness', 'making-an-attack', 'mounted-combat', 'movement', 'movement-and-position', 'objects', 'poisons', 'proficiency-bonus', 'resting', 'saving-throws', 'sentient-magic-items', 'standard-exchange-rates', 'the-environment', 'the-order-of-combat', 'the-planes-of-existence', 'time', 'traps', 'underwater-combat', 'using-each-ability', 'what-is-a-spell']}