fix typo

Signed-off-by: Ngroot <yihua.mo@zilliz.com>

CHANGELOG.md

@@ -29,9 +29,9 @@ Please mark all change in change log and use the issue from GitHub
 -   \#1359 Negative distance value returned when searching with HNSW index type
 -   \#1429 Server crashed when searching vectors with GPU
 -   \#1476 Fix vectors results bug when getting vectors from segments
--   \#1484 Index type changed to IDMAP after compacted 
+-   \#1484 Index type changed to IDMAP after compacted
+-   \#1491 Server crashed during adding vectors
 -   \#1499 Fix duplicated ID number issue
--   \#1491 Server crashed during adding vectors  
 -   \#1504 Avoid possible race condition between delete and search 
 -   \#1507 set_config for insert_buffer_size is wrong
 -   \#1510 Add set interfaces for WAL configurations