List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=5550
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=5549",
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            "description": "Hi all! We are here today for friendship and fun. I recommend everyone to fight with all their strength, regardless of whether they are strong or weak. Enjoy!",
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