List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=players_start&page=616
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=players_start&page=615",
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                "summary": "First priority : HK people join plz                                                                     \nThis group welcomes everyone, but only if you don't be rude.",
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                "name": "Legion der Lappen",
                "summary": "Das ist die OGS-Gruppe des Twitch-Kanals Legion der Lappen, angeführt durch Oberst Lappen.",
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