correct the table header

Author: varun-dhawan

articles/postgresql/flexible-server/concepts-monitoring.md

@@ -28,7 +28,7 @@ The following metrics are available for a flexible server instance of Azure Data
 
 |Display name                    |Metric ID                    |Unit      |Description                                                                                                                                                                                                                                                                                                                                                                                 |Default enabled|
 |--------------------------------|-----------------------------|----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|
-|**Active Connections**          |`active_connections`         |Count     |Total number of connections to database Server, covering all states of connections, including active, idle, and others as seen in `pg_stat_activity`` view. For a detailed view focusing solely on active connections, use "Sessions By State" metric.                                                                                                                                      |Yes            |
+|**Active Connections**          |`active_connections`         |Count     |Total number of connections to database Server, covering all states of connections, including active, idle, and others as seen in `pg_stat_activity` view. For a detailed view focusing solely on active connections, use "Sessions By State" metric.                                                                                                                                       |Yes            |
 |**Backup Storage Used**         |`backup_storage_used`        |Bytes     |Amount of backup storage used. This metric represents the sum of storage that's consumed by all the full backups, differential backups, and log backups that are retained based on the backup retention period that's set for the server. The frequency of the backups is service managed. For geo-redundant storage, backup storage usage is twice the usage for locally redundant storage.|Yes            |
 |**Failed Connections**          |`connections_failed`         |Count     |Number of failed connections.                                                                                                                                                                                                                                                                                                                                                               |Yes            |
 |**Succeeded Connections**       |`connections_succeeded`      |Count     |Number of succeeded connections.                                                                                                                                                                                                                                                                                                                                                            |Yes            |