Apply suggestions from code review

Co-authored-by: Vlada Chirmicci <[email protected]>

Author: natasha-moore-elastic

release-notes/elastic-cloud-serverless/known-issues.md

@@ -20,7 +20,7 @@ Known issues are significant defects or limitations that may impact your impleme
 
 **Details**
 
-A new feature has been introduced to entity store that caused the transform to scan for non-existent indices.
+A new feature introduced to the entity store caused the transform to scan for nonexistent indices.
 
 **Workaround** 
 

release-notes/elastic-security/known-issues.md

@@ -22,7 +22,7 @@ Applies to: 9.2.0
 
 **Details**
 
-A new feature was introduced to entity store in 9.2.0 that caused the transform to scan for non-existent indices.
+A new feature introduced to the entity store in 9.2.0 caused the transform to scan for nonexistent indices.
 
 **Workaround**