List all tournaments or create a new tournament.

GET /api/v1/tournaments/?ordering=-rules&page=5680
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/?ordering=-rules&page=5679",
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                "summary": "First priority : HK people join plz                                                                     \nThis group welcomes everyone, but only if you don't be rude.",
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            },
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            "time_start": "2019-08-06T10:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
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            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-08-06T10:00:20.242135Z",
            "ended": "2019-09-07T04:20:36.579112Z",
            "start_waiting": "2019-08-06T10:00:18.772854Z",
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            "ranked": true
        }
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}