List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-name&page=656
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "Have fun in this tournament!😀",
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            "description": "Another tournament, I forgot to set restrictions on ranks for the first one.",
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                "name": "Go players",
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            "description": "Tournament for players 16 kyu to 10 , for fun  single elimination \nGood luck all !",
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            "description": "This is the time for a tournament!",
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                "name": "Group for GO",
                "summary": "Don't have a group? No problem, just join this group!",
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                "summary": "Wellington Rowing Club self isolating Go Team",
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            "name": "Tournament Name",
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