Update overview.md

Author: puglieri

docs/adguard-vpn-for-android/overview.md

@@ -11,6 +11,8 @@ Each server has its location and its ping rate, describing the response time of
 
 ## Saved locations
 
+![Saved locations *mobile](https://cdn.adtidy.org/content/kb/vpn/android/saved-loc_en.png)
+
 This section lets you save your favorite server locations to a dedicated tab so that you can quickly access them without the need to search or scroll through the whole list.
 
 To add a location to *Saved*, just swipe left on it. To remove it, do the same.