List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=first_pairing_method&page=5749
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "12/23 20:00 pm, 30mins/step, 練習賽, 歡迎大家參加\nThe last one only 1'30\", I afraid the time is too short for playing several games at the same time, so, I prolong the time in this new tournament. Please join this, and I will cancel the last one, thanks.\nSquirrelder",
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