diff --git a/op-guide/migration-overview.md b/op-guide/migration-overview.md
index caffd74a4e2bd..09173fdc85289 100644
--- a/op-guide/migration-overview.md
+++ b/op-guide/migration-overview.md
@@ -25,6 +25,7 @@ The following example scenarios show how you can put to use the tools mentioned
 #### Full data migration from MySQL
 
 To migrate the full data, you can use one of the following three solutions:
+
 - mydumper + Loader: use mydumper to export data from MySQL and use Loader to import the data into TiDB.
 - mydumper + TiDB-Lightning: use mydumper to export data from MySQL and use TiDB-Lightning to import the data into TiDB.
 - DM: use DM to export data from MySQL and import the data into TiDB.
@@ -34,6 +35,7 @@ For detailed operations, follow the steps in [Migrate Data from MySQL to TiDB](.
 #### Full data migration and incremental replication
 
 To migrate the full data and then replicate data incrementally, you can use one of the following three solutions:
+
 - mydumper + Loader + Syncer: use mydumper to export data from MySQL, use Loader to import the data into TiDB, and then use Syncer to replicate the incremental binlog data from MySQL into TiDB.
 - mydumper + TiDB-Lightning + Syncer: use mydumper to export data from MySQL, use TiDB-Lightning to import the data into TiDB, and then use Syncer to replicate the incremental binlog data from MySQL into TiDB.
 - DM: use DM to migrate the full data from MySQL to TiDB and then replicate the incremental data from MySQL into TiDB.
@@ -45,6 +47,7 @@ For detailed operations, follow the steps in [Incremental Migration](../op-guide
 #### Dump and restore from database other than MySQL
 
 To import data from another database, it is recommended to:
+
 - Export the data as CSV format.
 - Import the data using TiDB-Lightning.