Update 2.balance-syntax.md (#1758)

docs-2.0/synchronization-and-migration/2.balance-syntax.md

@@ -6,10 +6,10 @@ The `BALANCE` statements are listed as follows.
 
 |Syntax|Description|
 |:---|:---|
-|`BALANCE DATA`| Starts a job to balance the distribution of storage partitions in the current graph space. It returns the job ID. |
-|`BALANCE DATA REMOVE <ip:port> [,<ip>:<port> ...]`| Migrate the partitions in the specified storage host to other storage hosts in the current graph space. |
 |`BALANCE LEADER`| Starts a job to balance the distribution of storage leaders in the current graph space. It returns the job ID. |
 <!-- balance-3.1
+|`BALANCE DATA`| Starts a job to balance the distribution of storage partitions in the current graph space. It returns the job ID. |
+|`BALANCE DATA REMOVE <ip:port> [,<ip>:<port> ...]`| Migrate the partitions in the specified storage host to other storage hosts in the current graph space. |
 |`BALANCE IN ZONE [REMOVE <ip>:<port> [,<ip>:<port> ...]]`| Starts a job to balance the distribution of storage partitions in each zone in the current graph space. It returns the job ID. You can use the `REMOVE` option to specify the Storage services that you want to clear. The partitions of these services will be moved to other services for easy maintenance.|
 |`BALANCE ACROSS ZONE [REMOVE "zone_name" [,"zone_name" ...]]`| Starts a job to balance the distribution of storage partitions across each zone in the current graph space. It returns the job ID. You can use the `REMOVE` option to specify the zones that you want to clear. The partitions of these services will be moved to other services for easy maintenance.|