List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-analysis_enabled&page=1075
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Hey guys! This is the 9x9 version of the rank tournaments! (For advanced) Good luck!",
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            "description": "welcome\n人数满20人时,提前开始",
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