docs: updated changelog

FossilOrigin-Name: 9e88c299e05bde47a4f402d542bc079a235040409c460f396c041f5ab1242fcc

Author: thindil

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 Tag **BREAKING** means the change break compatibility with a previous version
 of the shell.
 
-## [Unreleased]
+## [0.8.1] - 2024-06-25
 
 ### Fixed
 - Highlightning the user's input when there are nested quotes