List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-min_ranking&page=255
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-min_ranking&page=254",
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            "description": "Желаю всем участникам удачи! Заполучите этот кубок!\n(Кубок автоматически вы получите на сервере OGS если выиграете в турнире!)",
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