update MD by dispatch event pingcap/docs-cn master

Author: github-actions

markdown-pages/zh/tidb/master/keywords.md

@@ -778,7 +778,7 @@ TiDB 从 v7.5.3 和 v7.6.0 开始提供 [`INFORMATION_SCHEMA.KEYWORDS`](/informa
 - VARCHARACTER (R)
 - VARIABLES
 - VARYING (R)
-- VECTOR 
+- VECTOR
 - VIEW
 - VIRTUAL (R)
 - VISIBLE