Convert site to Hugo (#8316)

This commit converts content and layout to use Hugo.

content/cn/docs/user-guide/redis-deployment.yaml

@@ -0,0 +1,24 @@
+apiVersion: apps/v1beta1
+kind: Deployment
+metadata:
+  name: redis
+spec:
+  template:
+    metadata:
+      labels:
+        app: redis
+        tier: backend
+    spec:
+      # Provision a fresh volume for the pod
+      volumes:
+        - name: data
+          emptyDir: {}
+      containers:
+      - name: redis
+        image: kubernetes/redis:v1
+        ports:
+        - containerPort: 6379
+        # Mount the volume into the pod
+        volumeMounts:
+        - mountPath: /redis-master-data
+          name: data   # must match the name of the volume, above