diff --git a/best-practices-on-public-cloud.md b/best-practices-on-public-cloud.md
index 56260ac353162..acb163f13bb55 100644
--- a/best-practices-on-public-cloud.md
+++ b/best-practices-on-public-cloud.md
@@ -129,6 +129,7 @@ tikv:
       name: raft-pv-ssd
       storageSize: 512Gi
 ```
+
 ## Optimize cost for cross-AZ network traffic
 
 Deploying TiDB across multiple availability zones (AZs) can lead to increased costs due to cross-AZ data transfer fees. To optimize costs, it is important to reduce cross-AZ network traffic.