Update content-management.md

concepts/content-management.md

@@ -55,9 +55,17 @@ To be able to display the list of media it needs to access the data to render an
 Details [here](https://docs.applicaster.com/integrations/#how-zapp-apps-consume-data)
 
 ## Layout
-In Zapp, every platform links to a layout. E.g. Roku & Apple TV use the TV Layout and iOS uses the Mobile Layout. Each layout consists of components, E.g. a rail with "Live now" and another rail with "Popular".  Each component gets JWP media from a JWP playlist through a feed.
+ Each layout consists of components, E.g. a rail with "Live now" and another rail with "Popular".  Each component gets JWP media from a JWP playlist through a feed.
 
 ## App config
 The app config can control which playlist is linked to a feed. E.g. the playlist App Config position 1 is linked to feed A. Feed A  is linked to the top rail in a layout.
 
+# Device-specific content
+In Zapp, every platform links to a layout. E.g. Roku & Apple TV use the TV Layout and iOS uses the Mobile Layout.
+
+# Geo-specific content
+- Each media item in JWP can be linked to [geo blocking rules](https://docs.jwplayer.com/platform/docs/protection-set-geoblocking-rules-for-videos). 
+- Media items are organized in the playlists.
+- The JWP Delivery API filters content based on the end-user's country, based on the defined rules
+- Applicaster Zapp will hide the complete rail when a playlist is completely empty.