docs: make English the default docs language and fix link paths

docs/skills/install.mdx

@@ -1,66 +1,65 @@
 ---
-title: 安装技能
-description: 通过命令一键安装来自多种来源的技能
+title: Install Skills
+description: Install skills from multiple sources with a single command
 ---
 
-CowAgent 支持通过统一的 `install` 命令安装来自 [Cow 技能广场](https://skills.cowagent.ai/)、GitHub、ClawHub、LinkAI 以及任意 URL 上的技能。在对话中使用 `/skill install`，在终端中使用 `cow skill install`。
+CowAgent supports installing skills from [Cow Skill Hub](https://skills.cowagent.ai/), GitHub, ClawHub, LinkAI, and any URL via a unified `install` command. Use `/skill install` in chat or `cow skill install` in the terminal.
 
-## 从Cow技能广场安装
+## From the Skill Hub
 
-访问 [skills.cowagent.ai](https://skills.cowagent.ai/) 浏览所有可用技能，找到想要的技能后直接安装，例如：
+Browse all available skills at [skills.cowagent.ai](https://skills.cowagent.ai/) and install by name:
 
 ```text
 /skill list --remote
 /skill install pptx
 ```
 
-## 从 GitHub 安装
+## From GitHub
 
-> Github上的所有技能都可以直接安装，支持仓库级批量安装和指定子目录安装，例如：
+Any GitHub-hosted skill can be installed directly. Supports both repository-level batch install and subdirectory-level single install:
 
 ```text
 /skill install larksuite/cli
 /skill install https://github.com/larksuite/cli/tree/main/skills/lark-im
 ```
 
-## 从 ClawHub 安装
-
-[ClawHub](https://clawhub.ai/) 上的所有技能 (4w+个) 都可以一键安装，例如：
+## From ClawHub
 
+All [ClawHub](https://clawhub.ai/) skills (40k+) can be installed with a single command:
 
 ```text
 /skill install clawhub:<name>
 ```
 
-## 从 LinkAI 安装
+## From LinkAI
 
-[LinkAI](https://link-ai.tech/console) 上的所有公开资源 (1w+个应用/工作流/插件) ，以及自己创建的资源 (应用/工作流/知识库/数据库/插件) 都可以通过命令一键安装：
+All public resources on [LinkAI](https://link-ai.tech/console) (10k+ apps / workflows / plugins), as well as your own resources (apps, workflows, knowledge bases, databases, plugins), can be installed via:
 
 ```text
 /skill install linkai:<code>
 ```
 
-> LinkAI平台上创建的所有应用、工作流、知识库、数据库、插件都有唯一的code，可在[控制台](https://link-ai.tech/console)各资源页面中进行获取并填写到命令中
+> Every resource created on the LinkAI platform has a unique `code`. Find it on each resource's page in the [console](https://link-ai.tech/console).
 
-## 从 URL 安装
+## From URL
 
-支持 zip 压缩包和 SKILL.md 文件链接：
+Supports zip archives and SKILL.md file links:
 
 ```text
 /skill install https://cdn.link-ai.tech/skills/pptx.zip
 /skill install https://example.com/path/to/SKILL.md
 ```
 
-## 管理技能
+## Manage Skills
 
 ```text
-/skill list                  # 查看已安装技能
-/skill info pptx             # 查看技能详情
-/skill enable pptx           # 启用技能
-/skill disable pptx          # 禁用技能
-/skill uninstall pptx        # 卸载技能
+/skill list                  # View installed skills
+/skill info pptx             # View skill details
+/skill enable pptx           # Enable a skill
+/skill disable pptx          # Disable a skill
+/skill uninstall pptx        # Uninstall a skill
 ```
 
 <Tip>
-  以上所有命令在终端中使用时，将 `/skill` 替换为 `cow skill` 即可。完整命令说明参考 [技能管理命令](/cli/skill)。
+  All commands above work in the terminal by replacing `/skill` with `cow skill`. See [Skill Management Commands](/cli/skill) for full documentation.
 </Tip>