Fix link: Nicholas023 -> Nicholaskin (vision-exp-tile)

[Nicholaskin]

• [√] My repo's package.json declares dsh.bundle (not just dsh.client) — example / 仓库 package.json 已声明 dsh.bundle（只有 dsh.client 无法安装）
• [√] One line added to both README.en.md (English) and README.md (中文), under the matching category / 两个语言文件各加一行，放对分类
• [√] Description states what the plugin does, no superlatives / 描述只说功能，不带营销词
• [√] My repo has the dsh-plugin topic / 仓库已打 dsh-plugin topic

Recommended (not required) / 推荐但不强制：

• 📦 Publish to npm — npm installs are prebuilt and skip the allowBuilds approval, so users get a one-command install / 发布 npm 包：预构建产物免 allowBuilds 授权，用户一条命令装好
• 🔗 Declare official @deepseek-ai/* packages as peerDependencies (not dependencies) — avoids duplicate runtimes inside the profile / 官方 @deepseek-ai/* 包用 peerDependencies 声明（而非 dependencies），避免 profile 里出现重复运行时

The original account Nicholas023 has been suspended by GitHub, so its repositories are no longer reachable (404). The project has been migrated to the new account Nicholaskin:
https://github.com/Nicholaskin/vision-exp-tile
This PR only fixes the link — Nicholas023/vision-exp-tile → Nicholaskin/vision-exp-tile (both the link text and the URL). No entries are added, no formatting is touched, and nothing else is changed.
原账号 Nicholas023 已被 GitHub 停用，其仓库全部不可访问（404）；项目已迁移至新账号 Nicholaskin。本 PR 仅修正链接（链接文字与 URL 一并更新），未新增条目、未改动其它内容。