List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=auto_start_on_max&page=5700
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "只是一个级位赛啦,大家来玩玩吧, come on join this game, let's see who is the best kyu level player O(∩_∩)O",
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            "description": "Join the group for more cat tournaments ^__^",
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