Add missing slash

Author: ConnorLand

content/en/docs/releasenotes/studio-pro/10/10.19.md

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 #### Online Synchronization Mode (Beta)
 
-We introduced a new feature for offline apps, [Online Synchronization Mode (Beta)](refguide/mobile/building-efficient-mobile-apps/offlinefirst-data/online-sync-mode/), that allows app developers to define specific entities as **online available**. Defining an entity as **online available** means that the offline app will execute queries on these entities on the Mendix Runtime Server instead of the offline database. Of course, this is only possible when the app has an internet connection. Employing this feature reduces the need to have to synchronize more data then strictly necessary for offline apps as certain parts can become only available when having a connection.
+We introduced a new feature for offline apps, [Online Synchronization Mode (Beta)](/refguide/mobile/building-efficient-mobile-apps/offlinefirst-data/online-sync-mode/), that allows app developers to define specific entities as **online available**. Defining an entity as **online available** means that the offline app will execute queries on these entities on the Mendix Runtime Server instead of the offline database. Of course, this is only possible when the app has an internet connection. Employing this feature reduces the need to have to synchronize more data then strictly necessary for offline apps as certain parts can become only available when having a connection.
 
 These entities can be configured as online available by configuring the synchronization mode in the offline navigation profiles. A new option has been introduced (**Online**) to be selected per entity that you want to have this functionality for.