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/windows/secret-pod.yaml

@@ -0,0 +1,32 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: mysecret
+type: Opaque
+data:
+  username: YWRtaW4=
+  password: MWYyZDFlMmU2N2Rm
+
+---
+
+apiVersion: v1
+kind: Pod
+metadata:
+  name: my-secret-pod
+spec:
+  containers:
+  - name: my-secret-pod
+    image: microsoft/windowsservercore:1709
+    env:
+      - name: USERNAME
+        valueFrom:
+          secretKeyRef:
+            name: mysecret
+            key: username
+      - name: PASSWORD
+        valueFrom:
+          secretKeyRef:
+            name: mysecret
+            key: password
+  nodeSelector:
+    beta.kubernetes.io/os: windows