List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-players_start&page=5565
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "humandryさん、せぽわわさん、Daichi1515さん、wukittyさん、はっしーのアカウントさん、sugar045さん、fumi23さん",
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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。これは第四十八回村瀬碁グループ定例トーナメントです。2022年9月27日に開始されます。\n\nA tournament that happens every month on the 27th. This is the 48th tournament that starts on September 27th, 2022.",
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        {
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