Update CHANGELOG.md

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.1] - 2023-01-21
+
+### Added
+
+- Setup utility to install Lip.
+
 ## [0.3.0] - 2023-01-20
 
 ### Added
@@ -43,7 +49,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Basic functions: cache, install, list, show, tooth init, and uninstall.
 
-[unreleased]: https://github.com/LiteLDev/Lip/compare/v0.3.0...HEAD
+[unreleased]: https://github.com/LiteLDev/Lip/compare/v0.3.1...HEAD
+[0.3.0]: https://github.com/LiteLDev/Lip/releases/tag/v0.3.0...v0.3.1
 [0.3.0]: https://github.com/LiteLDev/Lip/releases/tag/v0.2.1...v0.3.0
 [0.2.1]: https://github.com/LiteLDev/Lip/releases/tag/v0.2.0...v0.2.1
 [0.2.0]: https://github.com/LiteLDev/Lip/releases/tag/v0.1.0...v0.2.0