List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=236
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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        {
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            "description": "The last one got filled up overnight, so I'm opening another one.",
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                "id": 43,
                "name": "Kyu Level Study Group",
                "summary": "A group for kyu level players! Join, play tournaments, and have fun. Thanks for being a part of our community!",
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        {
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