List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-player_count&page=3587
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "exclude_provisional": true,
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                "name": "New Zealand Tournaments",
                "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ",
                "require_invitation": false,
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            "ended": "2020-05-03T23:32:32.002798Z",
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}