Update ChangeLog

Author: github-actions[bot]

CHANGELOG.md

@@ -1,20 +1,15 @@
 # Changelog
 
-## v0.1.6 (14/06/2021)
+## v3.5.1 (29/09/2021)
+Pre-release.
+---
+
+## v4.0.0 (30/09/2021)
 ## Changes
-- Add files for coverage and reuse @bjk7119 (#5)
-
-## 🐛 Hotfixes
-
-- Fix a bug related to print log @soimkim (#4)
-- Add parameter for DB connection @soimkim (#1)
-
 ## 🔧 Maintenance
 
-- Fix to make executable file & Add hooks file @bjk7119 (#6)
-- Add parameter info to README @soimkim (#3)
-- Update README @soimkim (#2)
-- Add parameter for DB connection @soimkim (#1)
+- Update documentation @soimkim (#17)
+- Add badges to README @soimkim (#16)
 
 ---