docs: add changelog

Author: fefit

.npmignore

@@ -27,4 +27,7 @@ jest.config.js
 .eslintrc.js
 
 # husky
-.husky/
+.husky/
+
+# git action
+.github/

CHANGELOG.md

@@ -2,11 +2,18 @@
 
 The changelog of the reregexp library.
 
+## [1.6.1] - 2023-05-21
+
+### Added
+
+- Add ESM module export support.
+
 ## [1.6.0] - 2022-05-09
 
 ### Added
 
-- Add `charactersOfAny` config, you can either set a global config with the static property `ReRegExp.charactersOfAny` or with a `ParserConf` for an instance `new ReRegExp(context, { charactersOfAny })`, it let you can define which characters can be generated by a `.` character class.  
+- Add `charactersOfAny` config, you can either set a global config with the static property `ReRegExp.charactersOfAny` or with a `ParserConf` for an instance `new ReRegExp(context, { charactersOfAny })`, it let you can define which characters can be generated by a `.` character class.
+
 ## [1.5.0] - 2021-05-19
 
 ### Added