List all tournaments or create a new tournament.

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HTTP 200 OK
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Content-Type: application/json
Vary: Accept

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            "description": "Для желающих. Зовите друзей и знакомых. Круговая система (каждый с каждым). Максимум 10 игроков в турнирах по круговой системе",
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                "name": "Samara Go Group",
                "summary": "https://vk.com/@weiqi_school-razbor-dzhosek-uglovyh-debutov\n\nhttps://online-go.com/puzzle/181",
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            "description": "---\n- STARTS WHEN FULL & Does NOT pause on the weekend.\n\n- Just one round. Ten players, nine games, Chinese Rules/Scoring.\n\n- If this suits you then, Bonne Partie :)\n\n- Note: Provisional players allowed & welcome.",
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                "summary": "Welcome to Final Frontier.\n\nWe have tons of tournaments and a magnificent director-Picard.\nPlease join this frontier soon, we are closing!",
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