List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-player_count&page=5250
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/?format=api&ordering=-player_count&page=5249",
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            "description": "Here's the tournament come in) \nCome to the group who is new will be glad to all)",
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                "name": "GoBanDit+",
                "summary": "Заходи в группу тут много интересного,заранее спасибо))\nCome to the group here a lot of interesting things, thank you in advance))",
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            "description": "🍃🍃🍃",
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