List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-rules&page=5764
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "is_public": true,
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            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
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            "analysis_enabled": true,
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            "ended": "2021-09-14T10:46:16.759476Z",
            "start_waiting": "2021-08-07T11:00:03.126504Z",
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}