BZ1978291: Updating QoS language to pod-centric vs container-centric.

Author: skrthomas

modules/nodes-cluster-overcommit-qos-about.adoc

@@ -17,8 +17,7 @@ time. When this occurs, the node must give priority to one pod over another. The
 facility used to make this decision is referred to as a Quality of Service (QoS)
 Class.
 
-For each compute resource, a container is divided into one of three QoS classes
-with decreasing order of priority:
+A pod is designated as one of three QoS classes with decreasing order of priority:
 
 .Quality of Service Classes
 [options="header",cols="1,1,5"]
@@ -28,16 +27,16 @@ with decreasing order of priority:
 |1 (highest)
 |*Guaranteed*
 |If limits and optionally requests are set (not equal to 0) for all resources
-and they are equal, then the container is classified as *Guaranteed*.
+and they are equal, then the pod is classified as *Guaranteed*.
 
 |2
 |*Burstable*
 |If requests and optionally limits are set (not equal to 0) for all resources,
-and they are not equal, then the container is classified as *Burstable*.
+and they are not equal, then the pod is classified as *Burstable*.
 
 |3 (lowest)
 |*BestEffort*
-|If requests and limits are not set for any of the resources, then the container
+|If requests and limits are not set for any of the resources, then the pod
 is classified as *BestEffort*.
 |===
 
@@ -62,12 +61,12 @@ from lower OoS classes from using resources requested by pods in higher QoS clas
 
 {product-title} uses the `qos-reserved` parameter as follows:
 
-- A value of `qos-reserved=memory=100%` will prevent the `Burstable` and `BestEffort` QOS classes from consuming memory
+- A value of `qos-reserved=memory=100%` will prevent the `Burstable` and `BestEffort` QoS classes from consuming memory
 that was requested by a higher QoS class. This increases the risk of inducing OOM
 on `BestEffort` and `Burstable` workloads in favor of increasing memory resource guarantees
 for `Guaranteed` and `Burstable` workloads.
 
-- A value of `qos-reserved=memory=50%` will allow the `Burstable` and `BestEffort` QOS classes
+- A value of `qos-reserved=memory=50%` will allow the `Burstable` and `BestEffort` QoS classes
 to consume half of the memory requested by a higher QoS class.
 
 - A value of `qos-reserved=memory=0%`