Update managing deployments user guide

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

@@ -0,0 +1,16 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: my-nginx
+spec:
+  replicas: 3
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:1.7.9
+        ports:
+        - containerPort: 80

docs/user-guide/nginx/nginx-svc.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-nginx-svc
+  labels:
+    app: nginx
+spec:
+  type: LoadBalancer
+  ports:
+  - port: 80
+  selector:
+    app: nginx