[Logs] Update the Logs Checklist headings (#3641)

docs/en/observability/logs-checklist.asciidoc

@@ -101,9 +101,10 @@ The following resources provide information on viewing and monitoring your logs:
 
 [discrete]
 [[logs-app-checklist]]
-== Application logs
+== View and monitor application logs
 
 Application logs provide valuable insight into events that have occurred within your services and applications.
+
 Refer to <<application-logs>>.
 
 [discrete]
@@ -116,6 +117,7 @@ Refer to <<logs-threshold-alert>>.
 
 [discrete]
 [[logs-template-checklist]]
+== Configure the default logs template
 
 Configure the default `logs` template using the `logs@custom` component template.