List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-min_ranking&page=1619
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Hi, i get my first Go board (9x9 of course) and i want to celebrate it with you with that tournament.\n\nInvitation only :)\n\nIf you want to celebrate it with me, please join :D",
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