Update production-pods.md and replace rc with deployments

docs/user-guide/nginx-probe-deployment.yaml

@@ -0,0 +1,22 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: nginx
+spec:
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx
+        ports:
+        - containerPort: 80
+        livenessProbe:
+          httpGet:
+            # Path to probe; should be cheap, but representative of typical behavior
+            path: /index.html
+            port: 80
+          initialDelaySeconds: 30
+          timeoutSeconds: 1