[zh] Fix the etcd client certs

Author: h4ghhh

content/zh/docs/tasks/administer-cluster/configure-upgrade-etcd.md

@@ -236,8 +236,8 @@ communication:
 
 ```
 ETCDCTL_API=3 etcdctl --endpoints 10.2.0.9:2379 \
-  --cert=/etc/kubernetes/pki/etcd/server.crt \
-  --key=/etc/kubernetes/pki/etcd/server.key \
+  --cert=/etc/kubernetes/pki/etcd/client.crt \
+  --key=/etc/kubernetes/pki/etcd/client.key \
   --cacert=/etc/kubernetes/pki/etcd/ca.crt \
   member list
 ```
@@ -253,8 +253,8 @@ ETCDCTL_API=3 etcdctl --endpoints 10.2.0.9:2379 \
 
 ```
 ETCDCTL_API=3 etcdctl --endpoints 10.2.0.9:2379 \
-  --cert=/etc/kubernetes/pki/etcd/server.crt \
-  --key=/etc/kubernetes/pki/etcd/server.key \
+  --cert=/etc/kubernetes/pki/etcd/client.crt \
+  --key=/etc/kubernetes/pki/etcd/client.key \
   --cacert=/etc/kubernetes/pki/etcd/ca.crt \
   member list
 ```
@@ -665,4 +665,4 @@ ETCDCTL_API=3 etcdctl --endpoints 10.2.0.9:2379 snapshot restore snapshotdb
 我们还建议重启所有组件（例如 `kube-scheduler`、`kube-controller-manager`、`kubelet`），以确保它们不会
 依赖一些过时的数据。请注意，实际中还原会花费一些时间。
 在还原过程中，关键组件将丢失领导锁并自行重启。
-{{< note >}}
+{{< note >}}