Acrolinx fixes

Author: denrea

articles/search/search-query-access-control-rbac-enforcement.md

@@ -43,7 +43,7 @@ The end-user application sends user permission as part of the search query reque
 
 Azure AI Search dynamically constructs security filters based on the user permissions provided. These security filters are automatically appended to any filters that might come in with the query if the index has the permission filter option enabled.
 
-For Azure RBAC, permissions are list of resource ID strings, and there must an Azure role assignment (Storage Blob Data Reader) on the data the source that grants access to the security principal token in the authorization header. The filter excludes documents if there's no role assignment for the principal behind the access token on the request.
+For Azure RBAC, permissions are lists of resource ID strings, and there must be an Azure role assignment (Storage Blob Data Reader) on the data the source that grants access to the security principal token in the authorization header. The filter excludes documents if there's no role assignment for the principal behind the access token on the request.
 
 ### 3. Results filtering