List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=554
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=553",
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            "description": "Creo este torneo para que haya una competencia entre los jugadores del grupo de Argentina en el nivel Kyu. Cualquier duda, pueden mandarme un mensaje privado",
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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": "9x9 Lovers",
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            "name": "Meenoi's Tournament ครั้งที่ 0.2",
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            "description": "รอบนี้ทดสอบทัวร์นาเมนต์ 13x13 ครับ\nรอบนี้จะเป็นสมาชิกในกลุ่มเท่านั้น เพราะรอบที่แล้วครูตั้งค่าผิดครับ ^_^",
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                "name": "We pIay",
                "summary": "ขอใช้กลุ่มนี้เป็นที่นัดหมายแข่งขันนะครับ",
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            "name": "Daeseok's tournament!",
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            "name": "FSTS June 2015 Meditation",
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            "description": "A tournament for those who prefer to quietly reflect on the depth and beauty of each game.",
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            "description": "9x9 tournament!!\n\nTime: 11:40-11:50\n\nVenue: 1C classroom\n\n(Posted by I am small in 1C)",
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                "id": 5925,
                "name": "Group for GO",
                "summary": "Don't have a group? No problem, just join this group!",
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