Update ChangeLog.md

Author: cormacpayne

src/Sql/Sql/ChangeLog.md

@@ -22,12 +22,12 @@
 * Add Azure Sql Instance pool usages cmdlets
 * Update Azure Sql Managed instance cmdlets to support instance pools
 * Fixed miscellaneous typos across module
+* Add optional resource group parameter to Get-DatabaseLongTermRetentionBackup and Remove-DatabaseLongTermRetentionBackup cmdlets
 
 ## Version 1.13.1
 * Fix missing examples for Set-AzSqlDatabaseSecondary cmdlet
 * Fix set Vulnerability Assessment recurring scans without providing any email addresses
 * Fix a small typo in a warining message.
-* Add optional resource group parameter to Get-DatabaseLongTermRetentionBackup and Remove-DatabaseLongTermRetentionBackup cmdlets
 
 ## Version 1.13.0
 * Add Instance Failover Group cmdlets from preview release to public release