.. toctree::
   :maxdepth: 5
   :caption: KS0470 4WD BT Multi-purpose Car V2.0 Kit Arduino Tutorial

   docs/1. Product introduction/1. Product introduction
   docs/2. Product installation/2. Product installation
   docs/3. Driver installation/3. Driver installation
   docs/4. Arduino/4.rst
   docs/5. Common Troubleshooting/5. Common Troubleshooting