List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=279
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "A Tournament for March, a Tournament for Spring - not enough tournaments for DDKs out there, so here's another!\n\nEnjoy!",
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            "description": "The first 3 have gone so well, why not continue?",
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