Add to sidebar tree

Author: trickeydan

_data/sidebar_tree.yaml

@@ -20,6 +20,8 @@ tree:
       tree:
         - url: /kit/brain_board/updates
           title: Updates
+        - url: /kit/brain_board/advanced
+          title: Advanced
     - url: /kit/motor_board
       title: Motor Board
     - url: /kit/power_board