Added a missing section header

Author: periclesrocha

articles/synapse-analytics/sql/tutorial-external-tables-using-managed-identity.md

@@ -185,6 +185,8 @@ Where:
 
 Make sure to adjust the table name and schema to the desired name and the schema of the data in your source files.
 
+### Query the external table
+
 At this point, all the metadata required to access the external table are created. To test your external table, use a query such as the following T-SQL sample to validate your work:
 
 ```sql
@@ -199,4 +201,4 @@ To learn more and explore the full syntax of `CREATE EXTERNAL TABLE`, see [CREAT
 
 - [Tutorial: Load external data using a managed identity](tutorial-external-tables-using-managed-identity.md)
 - [Load Contoso retail data into dedicated SQL pools in Azure Synapse Analytics](../sql-data-warehouse/sql-data-warehouse-load-from-azure-blob-storage-with-polybase.md)
-- [Managed identities for Azure Synapse Analytics](../synapse-service-identity.md)
+- [Managed identities for Azure Synapse Analytics](../synapse-service-identity.md)