Consolidate YAML files [part-12] (#9364)

* Consolidate YAML files [part-12]

Relocate YAML files referenced by the accessing application topic
and the rest of cluster administration.

* Adjust json shortcodes.

content/en/examples/admin/sched/pod3.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: annotation-second-scheduler
+  labels:
+    name: multischeduler-example
+spec:
+  schedulerName: my-scheduler
+  containers:
+  - name: pod-with-second-annotation-container
+    image: k8s.gcr.io/pause:2.0