(DOCSP-26096) changes 'pod' to 'node' (#1113)

Author: sarahsimpers

source/reference/production-notes.txt

@@ -508,7 +508,7 @@ You can run the lightweight ``mongos`` instance on the same |k8s-node|
 as your apps using MongoDB. The |k8s-op-short| supports standard |k8s|
 :k8sdocs:`node affinity and anti-affinity </concepts/configuration/assign-pod-node/#affinity-and-anti-affinity>`
 features. Using these features, you can force install the ``mongos``
-on the same Pod as your application.
+on the same node as your application.
 
 The following abbreviated example shows affinity and multiple
 availability zones configuration.