add changelog

Author: michalsn

CHANGELOG.md

@@ -3,6 +3,12 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [2.1.0](https://github.com/michalsn/codeigniter-signed-url/compare/v1.0.0...v1.1.0) - 2023-09-08
+
+### Enhancements
+- Added `token` option to set a randomly generated token of the specified length by @michalsn in #45
+- Added `redirectTo` option setting to set a URI path for redirection when filter URL validation fails by @michalsn in #46
+
 ## [2.0.0](https://github.com/michalsn/codeigniter-signed-url/compare/v1.1.1...v2.0.0) - 2023-08-26
 
 ### Fixes