Mention that we may need to update some livestream assets

Author: RealOrangeOne

comp/livestream/configure-scenes.yaml

@@ -10,6 +10,9 @@ description: >-
   The livestream requires a number of different scenes and views, made up of
   static images, video feeds, overlays etc.
 
+  Most of the assets have already been created, but some may require updating
+  or new ones created
+
   See https://studentrobotics.org/runbook/competition/livestream/scenes/.
 
 dependencies: