List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=handicap&page=136
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "name": "Unusual boards",
                "summary": "Group for those who love playing on unusual boards like 10x10, 2x25, 7x14 and so on...",
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                "id": 5077,
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            "description": "To become Better and Better go players\n ",
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