List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-analysis_enabled&page=863
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Hello everyone, I have recently joined this group, nice to meet you! I am very new to this website/app so not sure whether you have tournaments in this group etc but thought I would create one and introduce myself.",
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