List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=started&page=3625
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "Hi! This competition will be held on 1st Feb! Have fun everyone!",
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            "description": "hmm, new types?",
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            "description": "If your rank changes to be outside the tournament Rank Restriction, please move yourself to the appropriate tournament. Enjoy your games.",
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