.. toctree::
   :maxdepth: 3
   :caption: KE3048 Keyes 树莓派Pico 学习套件 进阶版 

   README.md
   docs/1. 产品介绍.md
   docs/1. 树莓派 Pico 主板介绍.md
   docs/2. Keyestudio 树莓派 Pico IO 扩展板.md
   docs/Python 教程/Windows/Windows.md
   docs/Python 教程/树莓派/树莓派.md
   docs/Arduino 教程/Arduino 教程.md