diff --git a/pgsql/Demo/StreamReplication/README.md b/pgsql/Demo/StreamReplication/README.md
index 029d29f..5869bdf 100644
--- a/pgsql/Demo/StreamReplication/README.md
+++ b/pgsql/Demo/StreamReplication/README.md
@@ -41,12 +41,12 @@
 - 增加主库配置
     ```
     echo '
-wal_level = hot_standby
-max_wal_senders = 8
-wal_keep_size = 512
-wal_sender_timeout = 60s
-max_connections = 100
-' > pgsql1/conf.d/replication.conf
+    wal_level = hot_standby
+    max_wal_senders = 8
+    wal_keep_size = 512
+    wal_sender_timeout = 60s
+    max_connections = 100
+    ' > pgsql1/conf.d/replication.conf
 
 - 重启 pgsql1 数据库
     ```
@@ -77,15 +77,15 @@ max_connections = 100
 - 增加从库配置
     ```
     echo '
-primary_conninfo = 'host=pgsql1 port=5432 user=replicator'
-recovery_target_timeline = latest
-hot_standby = on
-max_standby_streaming_delay = 30s
-wal_receiver_status_interval = 10s
-hot_standby_feedback = on
-max_connections = 200
-max_worker_processes = 20
-' > pgsql2/conf.d/replication.conf
+    primary_conninfo = 'host=pgsql1 port=5432 user=replicator'
+    recovery_target_timeline = latest
+    hot_standby = on
+    max_standby_streaming_delay = 30s
+    wal_receiver_status_interval = 10s
+    hot_standby_feedback = on
+    max_connections = 200
+    max_worker_processes = 20
+    ' > pgsql2/conf.d/replication.conf
     ```
 
 - 启动 pgsql2 数据库