[8.3] [DOCS] Update screenshot of the "Getting started" page (backport …

…#2049) (#2078)

Co-authored-by: nastasha-solomon <[email protected]>

docs/getting-started/security-ui.asciidoc

@@ -8,7 +8,7 @@ The {security-app} is a highly interactive workspace designed for security analy
 [[search-overview]]
 == Search
 
-Filter for alerts, events, processes, and other important security data by entering *{kibana-ref}/kuery-query.html[{kib} Query Language (KQL)]* queries in the search bar, which appears at the top of each page throughout the app. A date/time filter set to `Today` is enabled by default, but can be changed to any time range. 
+Filter for alerts, events, processes, and other important security data by entering *{kibana-ref}/kuery-query.html[{kib} Query Language (KQL)]* queries in the search bar, which appears at the top of each page throughout the app. A date/time filter set to `Today` is enabled by default, but can be changed to any time range.
 
 [role="screenshot"]
 image::images/search-bar.png[]
@@ -23,7 +23,7 @@ image::images/search-bar.png[]
 
 The {security-app} contains the following pages that enable analysts to view, analyze, and manage security data:
 
-* Getting started
+* Get started
 * Overview
 * Alerts
 * Rules
@@ -57,11 +57,11 @@ image::images/collapse-side-nav-button.gif[width=100%][height=100%][Demo that sh
 
 [float]
 [[getting-started-page]]
-=== Getting started page
+=== Get started page
 
-The Getting started page guides you to integrations that you can use to monitor your hosts and ingest data. Other {security-app} pages that show event data (for example, the Hosts and Network pages) display the getting started prompt until event data has been ingested.
+The Get started page guides you to integrations that you can use to monitor your hosts and ingest data. Other {security-app} pages that show event data (for example, the Hosts and Network pages) display the get started prompt until event data has been ingested.
 
-image::images/getting-started-pg.png[Shows the Getting started page]
+image::images/getting-started-pg.png[Shows the Get started page]
 
 [float]
 [[overview-ui]]