update changelog

Author: jiaming743

CHANGELOG.md

@@ -2,18 +2,17 @@
 
 ### BugFixes
 
-- **scrollRankingBoard:** Calculation optimization of negative values. [(#101)](https://github.com/DataV-Team/DataV/pull/101)..
+- **scrollRankingBoard:** Calculation optimization of negative values. [(#101)](https://github.com/DataV-Team/DataV/pull/101).
 
 ### Perfect
 
 - **digitalFlop:** add number formatter.
 
-
 # 2.9.0-alpha (2020-06-10)
 
 ### ScrollBoard
 
-- **hoverPause:** add `hoverPause` configuration [(#96)](https://github.com/DataV-Team/DataV/pull/96)..
+- **hoverPause:** add `hoverPause` configuration [(#96)](https://github.com/DataV-Team/DataV/pull/96).
 - **mouseover:** add `mouseover` event [(#96)](https://github.com/DataV-Team/DataV/pull/96).
 
 # 2.8.4-alpha (2020-05-25)