Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=board_size&page=3972
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"2021-11-09T07:27:00.886578Z", "ended": "2021-11-18T07:28:54.779268Z", "start_waiting": "2021-11-09T07:27:00.815738Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 3, "ranked": true }, { "id": 134502, "name": "19x19 Open D.E. 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