add changelog

CHANGELOG.md

@@ -0,0 +1,12 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [PVP](https://pvp.haskell.org/).
+
+## [0.1.0.0] - 2023-03-17
+
+### Added
+
+- 🎉 everything's new! first release!

README.md

@@ -122,6 +122,10 @@ We have a `cabal` flag called `errors` which allows enabling `-Werror`. It has a
 
 In development and CI we use the flag `-f errors` so that we can avoid any warning in the library code.
 
+### Changelog
+
+All changes are tracked in the [`Changelog`](CHANGELOG.md).
+
 ## Project setup
 
 You can find more details on the project setup on [Setup.md](/Setup.md).

crem.cabal

@@ -22,6 +22,8 @@ tested-with:
   , GHC ==9.2.7
   , GHC ==9.4.4
   , GHC ==9.6.1
+extra-source-files:
+    CHANGELOG.md
 
 flag errors
   description: enable -Werror

package.yaml

@@ -20,6 +20,9 @@ tested-with:
   - GHC ==9.4.4
   - GHC ==9.6.1
 
+extra-source-files:
+  - CHANGELOG.md
+
 flags:
   errors:
     description: enable -Werror