Add Roo Code Todo Lists video to tutorial videos (#264)

Author: SannidhyaSah

docs/tutorial-videos.json

@@ -35,6 +35,10 @@
     {
       "id": "WatooxMlW0U",
       "title": "Roo Marketplace"
+    },
+    {
+      "id": "6h5vB9PpoPk",
+      "title": "Roo Code Todo Lists"
     }
   ]
 }