feat: set version to 1.8.1 and adjust CHANGELOG

Author: hekmekk

CHANGELOG.md

@@ -5,6 +5,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+## [1.8.1]
 ### Fixed
 - The zsh completion script now correctly provides suggestions for the command `git team` (in addition to `git-team`).
 
@@ -171,7 +172,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Append co-authors to a `git commit` message by means of a commit message template file
 
-[Unreleased]: https://github.com/hekmekk/git-team/compare/v1.8.0...HEAD
+[Unreleased]: https://github.com/hekmekk/git-team/compare/v1.8.1...HEAD
+[1.8.1]: https://github.com/hekmekk/git-team/compare/v1.8.0...v1.8.1
 [1.8.0]: https://github.com/hekmekk/git-team/compare/v1.7.1...v1.8.0
 [1.7.1]: https://github.com/hekmekk/git-team/compare/v1.7.0...v1.7.1
 [1.7.0]: https://github.com/hekmekk/git-team/compare/v1.6.0...v1.7.0

main.go

@@ -23,7 +23,7 @@ import (
 )
 
 const (
-	version     = "1.8.1-rc1"
+	version     = "1.8.1"
 	authorName  = "Rea Sand"
 	authorEmail = "[email protected]"
 )