List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-min_ranking&page=647
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "A tábla felett\n\nKezem nem remeg-meg.\n\nVan-e két szemed?\n\n\nHa van, akkor csatlakozz!",
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            "description": "Well, just for fun XD",
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