List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=min_ranking&page=4868
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "username": "wiadp1",
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            "description": "Hi everyone, welcome and have FUN!\n\nPAUSE/ VACATION = DISQUALIFICATION! If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nDouble elimination tournament every Sunday.",
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                "id": 12619,
                "name": "Happy Go!!!",
                "summary": "Feel free to join and create tournaments!\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY",
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            "description": "Hello and welcome to another potato war tournament. \n\nTournament type: Swiss \nTime per move: 36 hours\nPause on weekends: YES\nBoard: 9x9\n\nGOOD LUCK!\n\nJoin group in order to join tournament.",
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                "name": "TechnobladeSMP",
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            "name": "omar vdloo",
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            "description": "leuk wedstrijd",
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            "name": "9x9 Open D.E. Cup #230",
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                "username": "wiadp1",
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                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
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                "username": "Sofiam",
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                "name": "Go friends 🐬",
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                "name": "GO Special Tournaments",
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            "subsequent_pairing_method": "slaughter",
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