List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=time_start&page=2684
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "어서오세요^^",
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                "name": "😀Korea Go한국바둑😀",
                "summary": "많이 가입해주세요. 한국분 환영",
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