List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5513
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "You will have a total of 45 minutes to win this tournament.please arrive promptly at 6:00 pm on Saturday 12.good luck to all and have fun!",
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            "description": "have fun ~",
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