Clarified description

Clarified that Elasticsearch is only used during onboarding, then disabled.

Author: ccondra

src/live-search/install.md

@@ -97,7 +97,7 @@ This onboarding method is recommended when installing Live Search to:
 
 -  An existing production Commerce installation
 
-In this scenario, Elasticsearch manages search requests from the storefront while the Live Search service indexes all products in the background, without any interruption to normal storefront operations.
+In this scenario, Elasticsearch temporarily manages search requests from the storefront while the Live Search service indexes all products in the background, without any interruption to normal storefront operations. Elasticsearch is disabled after all catalog data is indexed and synchronized, and Live Search is enabled.
 
 1. To download the `live-search` package, run the following from the command line: