List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-analysis_enabled&page=409
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "To have a good start of the week you need to join this 19x19 #6 tournament. But before doing so, please consider that it would be nice to have at least one move per day. Thanks in advance for participating. Have fun! Enjoy it!",
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            "description": "Hi everyone, welcome and have FUN!\n\nDouble elimination tournament every Sunday.",
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