Update docs/installation/BT.md

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

docs/installation/BT.md

@@ -145,7 +145,7 @@ docker-compose down && docker-compose up -d
 
 ## 截图示例
 
-!\[宝塔面板 Docker 安装]\(https\://github.com/user-attachments/assets/7a6fc03e-c457-45e4-b8f9-184508fc26b0 null)
+![宝塔面板 Docker 安装](https://github.com/user-attachments/assets/7a6fc03e-c457-45e4-b8f9-184508fc26b0)
 
 > ⚠️ 注意：密钥为环境变量 `SESSION_SECRET`，请务必设置！