List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-players_start&page=5857
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=-players_start&page=5856",
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            "name": "5 -> 陳琛悠 6 -> 周逸",
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            "id": 92589,
            "name": "The 47th Murase Go Group Tournament",
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                "username": "SM-SYaKo",
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            "description": "毎月27日に開催される定例トーナメントです。これは第四十七回村瀬碁グループ定例トーナメントです。2022年8月27日に開始されます。\n\nA tournament that happens every month on the 27th. This is the 47th tournament that starts on August 27th, 2022.",
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            "description": "ორ წაგებაზე გავარდნა",
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        {
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            "name": "Thursday Live",
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                "name": "Ireland",
                "summary": "For Irish go players, and friends of Irish go, wherever they may roam...",
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            "description": "Tournament for Beginner players",
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