List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=5825
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "For those who enjoy playing go on a friday night!",
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            "description": "รอบนี้ทดสอบทัวร์นาเมนต์ 13x13 ครับ\nรอบนี้จะเป็นสมาชิกในกลุ่มเท่านั้น เพราะรอบที่แล้วครูตั้งค่าผิดครับ ^_^",
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                "summary": "ขอใช้กลุ่มนี้เป็นที่นัดหมายแข่งขันนะครับ",
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            "description": "Starts when full. If it fills up quickly I will make a new one.",
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