docs: add instance type examples to InstanceTypes field comment

Author: moko-poi

exp/api/v1beta2/awsmanagedmachinepool_types.go

@@ -185,7 +185,7 @@ type AWSManagedMachinePoolSpec struct {
 	// InstanceTypes specifies a list of AWS instance types for the node group.
 	// The order of instance types specified determines priority of picking that instance type.
 	// This is also influenced by the CapacityType. For On-Demand capacity, the allocation strategy
-	// uses the order of instance types to determine which instance type to use first when fulfilling capacity.
+	// uses the order of instance types to determine which instance type to use first when fulfilling capacity  for ex; c5.large, c4.large, and c3.large .
 	// See AWS documentation https://docs.aws.amazon.com/eks/latest/userguide/managed-node-groups.html#managed-node-group-capacity-types
 	// for more information.
 	// +optional