[错误修正] recommend.md中duration被错拼为duraion

[Tirehar]

提交前请确认

• 我已阅读贡献指南, 已确认文档中有错误存在，且 Issues、Pull Requests 中无相同修正
• 我已验证修正内容的正确性

错误所在文档链接

https://github.com/SocialSisterYi/bilibili-API-collect/blob/master/docs/video/recommend.md#%E8%8E%B7%E5%8F%96%E9%A6%96%E9%A1%B5%E8%A7%86%E9%A2%91%E6%8E%A8%E8%8D%90%E5%88%97%E8%A1%A8web%E7%AB%AF

错误类型

描述性内容错误（如拼写/流程说明）

错误描述

"data对象中item数组中的对象"表格中内容为"视频时长"的字段名称"duration"被错拼为"duraion"

纠错依据

{"id":114969614227057,
"bvid":"BV1cUtuzmEis",
"cid":31479236771,"goto":"av",
"uri":"https://www.bilibili.com/video/BV1cUtuzmEis",
"pic":"http://i1.hdslb.com/bfs/archive/4e8f6268ecdf637b3eb3ec6f25690a566a113cac.jpg",
"pic_4_3":"http://i0.hdslb.com/bfs/archive/4e8f6268ecdf637b3eb3ec6f25690a566a113cac.jpg",
"title":"10名外国先心病患儿到河南免费治疗，给异族“换心”？不关心本国儿童？存在大量误导言论！",
"duration":337,"pubdate":1754297352,
"owner":{"mid":99443903,"name":"动物园巡逻员","face":"https://i2.hdslb.com/bfs/face/47707d09df803240c50762c92d86589f9a6f125e.jpg"},
"stat":{"view":1427738,"like":63516,"danmaku":2766,"vt":0},

修正方案

No response