Translate tasks/extend-kubernetes/configure-multiple-schedulers to Korean

Reflected bconfiden2's comments and deleted unnecessary blank spaces between links

Reflected seokho-son's comments

Reflected seokho-sons' comments (fixed missed errors)

content/ko/examples/admin/sched/clusterrole.yaml

@@ -0,0 +1,37 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  annotations:
+    rbac.authorization.kubernetes.io/autoupdate: "true"
+  labels:
+    kubernetes.io/bootstrapping: rbac-defaults
+  name: system:kube-scheduler
+rules:
+  - apiGroups:
+      - coordination.k8s.io
+    resources:
+      - leases
+    verbs:
+      - create
+  - apiGroups:
+      - coordination.k8s.io
+    resourceNames:
+      - kube-scheduler
+      - my-scheduler
+    resources:
+      - leases
+    verbs:
+      - get
+      - update
+  - apiGroups:
+      - ""
+    resourceNames:
+      - kube-scheduler
+      - my-scheduler
+    resources:
+      - endpoints
+    verbs:
+      - delete
+      - get
+      - patch
+      - update