docs: update changelog and bump version

lindyhopchris · lindyhopchris · commit df73fb3d1676 · 2023-07-20T18:24:18.000+01:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -3,7 +3,7 @@
 All notable changes to this project will be documented in this file. This project adheres to
 [Semantic Versioning](http://semver.org/) and [this changelog format](http://keepachangelog.com/).
 
-## Unreleased
+## [3.1.0] - 2023-07-20
 
 ### Added
 
