Merge release 1.14 into 1.15. (#16439)

1. Confirm the document content is similar as en version.
2. Merge the zh release-1.14 version into 1.15 version
3. add the 1.14 all sample into 1.15 for template work. The build looks fine.

- docs
  - concepts
    - architecture

content/zh/examples/podpreset/multi-merged.yaml

@@ -0,0 +1,29 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: website
+  labels:
+    app: website
+    role: frontend
+  annotations:
+    podpreset.admission.kubernetes.io/podpreset-allow-database: "resource version"
+    podpreset.admission.kubernetes.io/podpreset-proxy: "resource version"
+spec:
+  containers:
+    - name: website
+      image: nginx
+      volumeMounts:
+        - mountPath: /cache
+          name: cache-volume
+        - mountPath: /etc/proxy/configs
+          name: proxy-volume
+      ports:
+        - containerPort: 80
+      env:
+        - name: DB_PORT
+          value: "6379"
+  volumes:
+    - name: cache-volume
+      emptyDir: {}
+    - name: proxy-volume
+      emptyDir: {}