List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=board_size&page=3637
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Only fast players are invited.\n\n<h2 style=\"color:red\">No vacation allowed</h2>\n\nPlayers who use vacation mode will be disqualified.\n\n<hr/>\n\nJoin the group for more cat tournaments.",
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