List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=578
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Class A 19/7/64 กด Join this tournament และพิมพ์ชื่อ-สกุล เพื่อเช็คชื่อและเข้าแข่งขัน",
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