List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=618
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "여러분의 관심이 필요합니다 저는 ☆★Kyu Level Match★☆ 19x19 (Ranking)에서 하룻밤 사이에 4개의 게임을 완료 했습니다. 빠른 진행이 가능합니다. 물론 두는 사람에 따라 다르겠지만 아직 끝내지 못한 게임이 4개나 있다. 플레이를 안하는데 답이 없다.",
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            "name": "Live 19x19 Double Elimination Tournament 2025",
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                "username": "acadofruit",
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            "description": "Have fun this weekend by attending this 19x19 kyu level tournament!",
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