List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=analysis_enabled&page=4551
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Special league for players between 9kyu and 1kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
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            "name": "292929",
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                "username": "Boogyman",
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                "id": 25,
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                "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!",
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            "name": "Loquillo",
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                "username": "Chioxini",
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            },
            "description": "Para esperar :)",
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            "description": "Let's see if this works...",
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