Add call to collector for node.go

Author: mtds

main.go

@@ -29,6 +29,7 @@ func init() {
 	prometheus.MustRegister(NewCPUsCollector())           // from cpus.go
 	prometheus.MustRegister(NewGPUsCollector())           // from gpus.go
 	prometheus.MustRegister(NewNodesCollector())          // from nodes.go
+	prometheus.MustRegister(NewNodeCollector())           // from node.go
 	prometheus.MustRegister(NewPartitionsCollector())     // from partitions.go
 	prometheus.MustRegister(NewQueueCollector())          // from queue.go
 	prometheus.MustRegister(NewSchedulerCollector())      // from scheduler.go