actually keep changelog

CHANGELOG.md

@@ -1,49 +1,12 @@
 # Changelog
 
-A real changelog will be included once we reach `1.0.0`.
+All notable changes to this project will be documented in this file.
 
-Until now this file serves more or less as a playground for exploratory tests.
+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]
 
-## 0.0.8 - 2023-07-21
+### Fixed
 
-### Changed
-
-- The generated release notes on GitHub now omit the redundant release heading
-
-## 0.0.7 - 2023-07-21
-
-### Added
-
-- A test that the changelogs for the GitHub releases are generated by keepac itself, and not a big commit dump
-
-## 0.0.4 - 2020-01-01
-
-### Added
-
-- The initial version
-- Something Why does this not get inserted at the end?
-- Something This is unexpected
-- Something really good
-- foo bar foo
-- Something
-- a `monospaced` item
-
-## [0.0.3] - 2020-01-01
-
-### Added
-
-- The third version
-
-## [0.0.2] - 2020-01-01
-
-### Added
-
-- The second version
-
-## [0.0.1] - 2020-01-01
-
-### Added
-
-- The first version
+- `changelog release` omitting a few characters at the end of the printed summary