List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=92
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "name": "Go Cookies!",
                "summary": "The Go branch of the Cookies club. Other branches include Chess Cookies!",
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            "description": "and the run begins…",
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                "name": "Hikaru no go club",
                "summary": "Sai is the way.",
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