Update data-binding.md
Added a note about data binding
diff --git a/features/data-binding.md b/features/data-binding.md
index 71910e0..88468ab 100644
--- a/features/data-binding.md
+++ b/features/data-binding.md
@@ -26,7 +26,7 @@
Royale, like Flex before it, makes it easy to pass data around your application. A change to data can automatically update the display of that data in the user interface, and potentially in calculations or other functions that use that data. The feature that makes this possible without having to write lots of code is *data binding*.
Data binding requires
- - a **data binding bead** that adds this functionality to the whole application, or to the container in which the data binding happens.
+ - a **data binding bead** that adds this functionality to the whole application, or to the container in which the data binding happens. If you enable data binding for a container, it only applies to the componenents within that container; if you enable it at the application level, all application components inherit the ability to use data binding.
- a **source property**
- a **destination property**
- a **triggering event** that indicates when to copy the data from the source to the destination
