Add mention of data streams in 'ES data store' topic

Author: kilfoyle

manage-data/data-store.md

@@ -11,4 +11,6 @@ The documentation in this section details how {{es}} works as a _data store_ sta
 
 Then, learn how these documents and the fields they contain are stored and indexed in [Mapping](/manage-data/data-store/mapping.md), and how unstructured text is converted into a structured format that’s optimized for search in [Text analysis](/manage-data/data-store/text-analysis.md).
 
-You can also read more about working with {{es}} as a data store including how to use [index templates](/manage-data/data-store/templates.md) to tell {{es}} how to configure an index when it is created, how to use [aliases](/manage-data/data-store/aliases.md) to point to multiple indices, and how to use the [command line to manage data](/manage-data/data-store/manage-data-from-the-command-line.md) stored in {{es}}.
+You can also read more about working with {{es}} as a data store including how to use [index templates](/manage-data/data-store/templates.md) to tell {{es}} how to configure an index when it is created, how to use [aliases](/manage-data/data-store/aliases.md) to point to multiple indices, and how to use the [command line to manage data](/manage-data/data-store/manage-data-from-the-command-line.md) stored in {{es}}.
+
+If your use case involves working with continuous streams of time series data, you may consider using a [data stream](./data-store/data-streams.md). These are optimally suited for storing append-only data. The data can be accessed through a single, named resource, while it is stored in a series of hidden, auto-generated backing indices.