List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=min_ranking&page=5786
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "Winner will receive Black and white chess backgammon chess plastic children adult go game alphago game chess\n http://s.aliexpress.com/Mrei6Rr2",
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            "description": "Do well ;-)",
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