add notes to the disabled visibility setting string helper to ensure changes...

add notes to the disabled visibility setting string helper to ensure changes are reflected in the model as well

app/helpers/visibility_level_helper.rb

@@ -77,6 +77,8 @@ module VisibilityLevelHelper
     end
   end
 
+  # Note: these messages closely mirror the form validation strings found in the project
+  # model and any changes or additons to these may also need to be made there.
   def disallowed_project_visibility_level_description(level, project)
     level_name = Gitlab::VisibilityLevel.level_name(level).downcase
     reasons = []
@@ -93,6 +95,8 @@ module VisibilityLevelHelper
     "This project cannot be #{level_name}#{reasons}."
   end
 
+  # Note: these messages closely mirror the form validation strings found in the group
+  # model and any changes or additons to these may also need to be made there.
   def disallowed_group_visibility_level_description(level, group)
     level_name = Gitlab::VisibilityLevel.level_name(level).downcase
     reasons = []