[#1689] qos: Fix metric description

Change-Id: I460fdd3713e765d57ef3ff2945b9b3776f46c164
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

internal/metrics/qos.go

@@ -15,7 +15,7 @@ func newQoSMetrics() *QoSMetrics {
 			Namespace: namespace,
 			Subsystem: qosSubsystem,
 			Name:      "operations_total",
-			Help:      "Count of pending, in progree, completed and failed due of resource exhausted error operations for each shard",
+			Help:      "Count of pending, in progress, completed and failed due of resource exhausted error operations for each shard",
 		}, []string{shardIDLabel, operationLabel, ioTagLabel, typeLabel}),
 	}
 }