Forth Korean l10n work for release-1.19

- Fix ko glossary managed service title (#24621)
- Translate reference/glossary/service-broker.md in Korean (#24632)
- Translate reference/command-line-tools-reference/kubelet-authentication-authorization.md into korean (#24623)
- Update outdated files in the dev-1.19-ko.4 branch (#24622)
- Translate setup/production-environment/tools/kubeadm/self-hosting/ into Korean (#24655)
- Translate reference/kubectl/kubectl.md into Korean (#24482)
- docs: fix typo (#24713)
- Translate connecting-frontend-backend to Korean (#24422)
- Translate reference/kubectl/conventions.md into Korean (#24614)
- Translate k8s 1.19 relaese note in korean (#24633)

Co-authored-by: seokho-son <shsongist@gmail.com>
Co-authored-by: santachopa <santachopa@naver.com>
Co-authored-by: kosehy@gmail.com <kosehy@gmail.com>
Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: markruler <csu0414@gmail.com>
Co-authored-by: noel <neutiyoo@gmail.com>
Co-authored-by: coolguyhong <podolsmith@naver.com>
Co-authored-by: chhanz <han0495@gmail.com>
Co-authored-by: bluefriday <bluefriday86@gmail.com>

content/ko/examples/service/access/Dockerfile

@@ -0,0 +1,4 @@
+FROM nginx:1.17.3
+
+RUN rm /etc/nginx/conf.d/default.conf
+COPY frontend.conf /etc/nginx/conf.d

content/ko/examples/service/access/frontend.conf

@@ -0,0 +1,11 @@
+upstream hello {
+    server hello;
+}
+
+server {
+    listen 80;
+
+    location / {
+        proxy_pass http://hello;
+    }
+}

content/ko/examples/service/access/frontend.yaml

@@ -0,0 +1,39 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: frontend
+spec:
+  selector:
+    app: hello
+    tier: frontend
+  ports:
+  - protocol: "TCP"
+    port: 80
+    targetPort: 80
+  type: LoadBalancer
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: frontend
+spec:
+  selector:
+    matchLabels:
+      app: hello
+      tier: frontend
+      track: stable
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: hello
+        tier: frontend
+        track: stable
+    spec:
+      containers:
+      - name: nginx
+        image: "gcr.io/google-samples/hello-frontend:1.0"
+        lifecycle:
+          preStop:
+            exec:
+              command: ["/usr/sbin/nginx","-s","quit"]

content/ko/examples/service/access/hello-service.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: hello
+spec:
+  selector:
+    app: hello
+    tier: backend
+  ports:
+  - protocol: TCP
+    port: 80
+    targetPort: http

content/ko/examples/service/access/hello.yaml

@@ -0,0 +1,24 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: hello
+spec:
+  selector:
+    matchLabels:
+      app: hello
+      tier: backend
+      track: stable
+  replicas: 7
+  template:
+    metadata:
+      labels:
+        app: hello
+        tier: backend
+        track: stable
+    spec:
+      containers:
+        - name: hello
+          image: "gcr.io/google-samples/hello-go-gke:1.0"
+          ports:
+            - name: http
+              containerPort: 80