bump version to 0.2.3

CHANGELOG.md

@@ -4,7 +4,7 @@ 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).
 
-## [Unreleased]
+## [0.2.3] - 2020-12-25
 ### Added
 - This file.
 - LICENSE file to make GitHub happy ([#39](https://github.com/gkdr/carbons/issues/39)).

README.md

@@ -1,4 +1,4 @@
-# carbons 0.2.3-dev
+# carbons 0.2.3
 [![Build status](https://ci.appveyor.com/api/projects/status/0t32ouomatf2teld/branch/dev?svg=true)](https://ci.appveyor.com/project/gkdr/carbons/branch/dev)
 [![codecov](https://codecov.io/gh/gkdr/carbons/branch/dev/graph/badge.svg)](https://codecov.io/gh/gkdr/carbons)
 [![Language grade: C/C++](https://img.shields.io/lgtm/grade/cpp/g/gkdr/carbons.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/gkdr/carbons/context:cpp)

src/carbons.h

@@ -1,7 +1,7 @@
 #ifndef __CARBONS_H
 # define __CARBONS_H
 
-# define CARBONS_VERSION "0.2.3-dev"
+# define CARBONS_VERSION "0.2.3"
 # define CARBONS_AUTHOR "Richard Bayerle <[email protected]>"
 
 #endif /* __CARBONS_H */