List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=1245
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "-----------",
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                "name": "Любители игры го",
                "summary": "Здесь я провожу разные турниры, рад новым участникам.",
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            "name": "第六回ほたて会[第二回寒風戦]二桁級リーグ",
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            "description": "You can do what if you want",
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