List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-rules&page=5981
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "summary": "Welcome to the GH Go Club! \n\nCheck out our complete guide to the game at https://docs.google.com/document/d/1oUztveF3B-u6Vq_2YtkPusHVzhzn4LOJB6ug9GdGjjs/edit.",
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            "auto_start_on_max": false,
            "time_start": "2020-11-17T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-11-17T16:23:40.864639Z",
            "ended": "2020-12-01T16:37:58.267073Z",
            "start_waiting": "2020-11-17T16:23:40.628098Z",
            "board_size": 9,
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            "icon": "https://user-uploads.online-go.com/a59f80a1dd78e8c1307e14cc627732db-15.png",
            "player_count": 5,
            "ranked": true
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}