List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=ended&page=1967
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "It's time for the thirteenth monthly Weirdo's Group Weird Tournament! As always, only members of the weirdo's group are allowed, and the initial and subsequent pairing methods are random.",
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