Update CHANGELOG.md

Author: dwhinham

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.13.0] - 2023-02-23
+
 ### Added
 
 - Ability to reverse global left and right audio channels (new configuration file option) to work around broken hardware (issue #307).
@@ -528,7 +530,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Initial version.
 
-[unreleased]: https://github.com/dwhinham/mt32-pi/compare/v0.12.1..HEAD
+[unreleased]: https://github.com/dwhinham/mt32-pi/compare/v0.13.0..HEAD
+[0.13.0]: https://github.com/dwhinham/mt32-pi/compare/v0.12.1..v0.13.0
 [0.12.1]: https://github.com/dwhinham/mt32-pi/compare/v0.12.0..v0.12.1
 [0.12.0]: https://github.com/dwhinham/mt32-pi/compare/v0.11.3..v0.12.0
 [0.11.3]: https://github.com/dwhinham/mt32-pi/compare/v0.11.2..v0.11.3