Update to outdated files in the dev-1.17-ko.8. (#19872) (#19994)

Co-Authored-By: June Yi <june.yi@samsung.com>

Co-authored-by: June Yi <june.yi@samsung.com>

Co-authored-by: Yuk, Yongsu <ysyukr@gmail.com>

content/ko/examples/application/deployment.yaml

@@ -1,4 +1,4 @@
-apiVersion: apps/v1 # apps/v1beta2를 사용하는 1.9.0보다 더 이전의 버전용
+apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
 kind: Deployment
 metadata:
   name: nginx-deployment
@@ -6,7 +6,7 @@ spec:
   selector:
     matchLabels:
       app: nginx
-  replicas: 2 # 템플릿에 매칭되는 파드 2개를 구동하는 디플로이먼트임
+  replicas: 2 # tells deployment to run 2 pods matching the template
   template:
     metadata:
       labels:
@@ -14,6 +14,6 @@ spec:
     spec:
       containers:
       - name: nginx
-        image: nginx:1.7.9
+        image: nginx:1.14.2
         ports:
         - containerPort: 80