Update CHANGELOG.md

For 2.3.0 release

Author: isc-tleavitt

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 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).
 
-## [2.3.0] - Unreleased
+## [2.3.0] - 2023-12-06
 
 ### Added
 - Web UI includes a "Push Branch" button for local branches that are ahead of upstream
@@ -14,7 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added "Status" menu item to editor menu (#285)
 
 ### Fixed
-- Fatal: bad revision HEAD fixed using an empty commmit (#228)
+- Fatal: bad revision HEAD fixed using an empty commit (#228)
 - Fixed empty mappings when SourceControl.Git.Settings is instantiated (#250)
 - Studio export path doesn't get weird mixed slahes on Windows (#252)
 - Fixed custom PullHandlers not visible on settings UI (now all subclasses are visible) (#267)