List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=first_pairing_method&page=5364
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "World Lion Day is celebrated on August, 10th.\n\nhttps://www.worldlionday.com\n\n<hr/>\n\nJoin the group for more cat tournaments.",
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