List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-min_ranking&page=935
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "a tournament lol",
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            "description": "Viel Spaß allerseits!",
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            "description": "Go is por ludi ĝin !",
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}