List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-first_pairing_method&page=536
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Feel free to join! This is the replacement of the original one because the time setting was wrong.",
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            "description": "Hola bienvenidos",
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}