revert example app manifest change for public docs (#488)

examples/example-app.yaml

@@ -52,17 +52,3 @@ spec:
         - "/main"
         - "--process-metrics"
         - "--go-metrics"
----
-apiVersion: monitoring.googleapis.com/v1
-kind: PodMonitoring
-metadata:
-  name: prom-example
-  labels:
-    app.kubernetes.io/name: prom-example
-spec:
-  selector:
-    matchLabels:
-      app.kubernetes.io/name: prom-example
-  endpoints:
-  - port: metrics
-    interval: 30s

examples/pod-monitoring.yaml

@@ -0,0 +1,27 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+apiVersion: monitoring.googleapis.com/v1
+kind: PodMonitoring
+metadata:
+  name: prom-example
+  labels:
+    app.kubernetes.io/name: prom-example
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: prom-example
+  endpoints:
+  - port: metrics
+    interval: 30s