List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=5755
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "=======================================================\n\n                         Happy new year!\n\n                   Join my Monthly Tournaments!\n\n                  Join my New Year's Tournaments!\n\n=======================================================",
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            "description": "Hello, this is a round-robin tournament for us three, I hope both of you will participate.",
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