Update howto-run-instance-readiness-testing.md

Author: kroyburman

articles/operator-nexus/howto-run-instance-readiness-testing.md

@@ -50,8 +50,9 @@ The Instance Readiness Test (IRT) framework is an optional/add-on tool for the N
   Every average metric should be greater than 0.
 - Validate that KubeletRunningPods metric data is present within the last 10 minutes.
   Every average metric should be greater than 0.
-- Validate that ControllerRuntimeReconcileTotal metric data is present within the last 10 minutes.
+- Validate that ControllerRuntimeReconcileTotal2 metric data is present within the last 10 minutes.
   Every average metric should be greater than 0.
+  This metric needs to be filtered on namespace until the deprecated metric ControllerRuntimeReconcileTotal is removed.
 - Validate that CpuUtilizationMax metric data for fabric network device is present within the last 10 minutes.
   At least one non-zero metric should exist.
 - Validate that MemoryAvailable metric data is present within the last 10 minutes.