Update releases/release-6.1.0.md

Co-authored-by: Ran <[email protected]>

releases/release-6.1.0.md

@@ -67,7 +67,7 @@ In 6.1.0, the key new features or improvements are as follows:
 
 * Support using buckets to increase concurrency (experimental)
 
-    To help you further improve the query concurrency after setting Regions to a larger size, TiDB introduces the concept of bucket, which is a smaller range within a Region. Using buckets as the query unit can optimize concurrent query performance when Regions are set to a larger size. Using buckets as the query unit can also dynamically adjust the sizes of hot Regions to ensure the scheduling efficiency and load balance. This feature is currently experimental. It is not recommended to use it in production environments.
+    To help you further improve the query concurrency after setting Regions to a larger size, TiDB introduces the concept of bucket, which is a smaller range within a Region. Using buckets as the query unit can optimize concurrent query performance when Regions are set to a larger size. Using buckets as the query unit can also dynamically adjust the sizes of hotspot Regions to ensure the scheduling efficiency and load balance. This feature is currently experimental. It is not recommended to use it in production environments.
 
     [User document](/tune-region-performance.md#use-bucket-to-increase-concurrency), [#11515](https://github.com/tikv/tikv/issues/11515)