Typo fix

Author: denrea

articles/search/service-configure-firewall.md

@@ -149,7 +149,7 @@ The trusted services are used for vectorization workloads: generating vectors fr
 
 + To load a search index with vectors generated by an embedding model, assign **Search Index Data Contributor**.
 
-+ To provide queries with a vector generated by an embedding model, assign **Search Index Data Reader**. The embedding used in a query isn't written to an index, so no write permissions are rquired.
++ To provide queries with a vector generated by an embedding model, assign **Search Index Data Reader**. The embedding used in a query isn't written to an index, so no write permissions are required.
 
 > [!NOTE]
 > This article covers the trusted exception for admitting requests to your search service, but Azure AI Search is itself on the trusted services list of other Azure resources. Specifically, you can use the trusted service exception for [connections from Azure AI Search to Azure Storage](search-indexer-howto-access-trusted-service-exception.md).