List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=9
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "좋은 선수들이 많아지고 있습니다^^",
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            "description": "non-stop Correspondence 19x19 RoundRobin free for all. have fun!!! \n+。゜~”(゜∀゜)゜。+",
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            "description": "Sorry, I canceled the other, as it was open and non-MMIZLers joined. This is the final tournament.",
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                "summary": "You are all welcome! :D",
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