List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=5228
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=5227",
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            "id": 56447,
            "name": "'Shibumi' Go Turnuvası",
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                "id": 1007,
                "name": "Turkish Go Players",
                "summary": "Türkçe konuşan oyuncularin birbirlerine yardım edip oyunlarini gelistirmeleri amaci ile kurulmus bir grup.",
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