List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5219
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "И вот она долгожданная, тёплая пора-лето.\n\nБуду рад видеть всех, кто прийдёт на мой турнир. \n\n\n:D",
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            "description": "BOO!\nTrick or treat?\n\nThis tournament is created to celebrate Halloween!\n\nMay everyone join and invite others for a fun and scary game!\n\nP.s.\nHelp invite your friends to the group and tournament!",
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            "description": "je ne connais pas la methode de couplage",
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