List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=min_ranking&page=6021
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Tournament for sdk players",
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                "name": "Global Go Club",
                "summary": "Open Go club for people anywhere",
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            "description": "Please join this tournament as a \"celebration\" for Primary students!",
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