List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=4638
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "name": "New Zealand Tournaments",
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            "description": "Monthly Tournament\n\nEl Camino: A Breaking Bad Movie | Official Trailer https://www.youtube.com/watch?v=1JLUn2DFW4w",
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                "name": "Brighton Go Club",
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