style(docs): standardize heading formats and numbering

- Enforce Level 1-3 structural numbering based on SUMMARY.md hierarchy
- Remove structural numbering from Level 4+ headings
- Eliminate single child headings by converting to bold text
- Auto-inject summary text for headings with multiple children missing intro text
- Exclude Appendix chapters from structural numbering
- Avoid modifying code block contents
- Add script to detect non-standard English usage in headers

10_compose/10.2_install.md

@@ -10,7 +10,7 @@
 
 Linux 系统请使用以下介绍的方法安装。
 
-### Linux
+### 10.2.1 Linux
 
 在 Linux 上，你可以通过下载 Docker Compose CLI 插件 (二进制文件名为 `docker-compose`) 来安装。
 
@@ -32,7 +32,7 @@ $ curl -SL https://github.com/docker/compose/releases/download/v5.0.2/docker-com
 $ chmod +x $DOCKER_CONFIG/cli-plugins/docker-compose
 ```
 
-### 测试安装
+### 10.2.2 测试安装
 
 运行以下命令：
 
@@ -41,7 +41,7 @@ $ docker compose version
 Docker Compose version v5.0.2
 ```
 
-### bash 补全命令
+### 10.2.3 bash 补全命令
 
 运行以下命令：
 
@@ -49,7 +49,7 @@ Docker Compose version v5.0.2
 $ curl -L https://raw.githubusercontent.com/docker/compose/v5.0.2/contrib/completion/bash/docker-compose | sudo tee /etc/bash_completion.d/docker-compose > /dev/null
 ```
 
-### 卸载
+### 10.2.4 卸载
 
 如果是二进制包方式安装的，删除二进制文件即可。