List all tournaments or create a new tournament.

GET /api/v1/tournaments/?ordering=-rules&page=5644
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "name": "4th of July:D",
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            "description": "Have fun!",
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            "description": "To improve to beat Akira...",
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