Apply suggestions from code review

Author: cbullinger

source/sdk/react-native/app-services.txt

@@ -6,7 +6,7 @@ App Services - React Native SDK
 ===============================
 
 .. meta:: 
-  :description: App Services available with the React Native SDK
+  :description: Overview of using Atlas App Services with the Atlas Device SDK for React Native.
 
 .. facet::
   :name: genre