Update sidebars.ts

Author: AmbroiseTau

sidebars.ts

@@ -30,6 +30,18 @@ const sidebars: SidebarsConfig = {
         },
       ],
     },
+    {
+      type: 'category',
+      label: 'Mechanical Assembly',
+      collapsed: false,
+      items: [
+        // 'PCB-intro',
+        {
+          type: 'autogenerated',
+          dirName: 'mechanicalAssembly', // Generate sidebar slice from docs/tutorials/easy
+        },
+      ],
+    },
     {
       type: 'category',
       label: 'Tutorial - Doc How To',