Update CHANGELOG

CHANGELOG.md

@@ -1,16 +1,11 @@
 # Changelog
 
-## 2.2.1 (2017/09/31)
+## 2.2.1 (2017/10/01)
 
 * Improve coding quality
 * Add `ImmediateMode` (Issue #27)
 * Translated `README` into Chinese
 
-> Does `Version` in config file mean the version it was created?
-> Maybe we can use it to mention the user to have a look at new configs.
-
-*Known BUG: Error when you put the program into a path that contains Chinese character.*
-
 ## 2.2.0 (2017/08/29)
 
 * Resolve absolute paths in `customPaths` (Issue #30)