List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-exclusivity&page=5755
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "月例13路盤対局、11月も開催します。ご都合が付きましたら、気楽にご参加下さい。",
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            "description": "Vamos a entrenar partidas simuls",
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