add a github release action workflow

.github/workflows/gh-release.yaml

@@ -0,0 +1,24 @@
+name: Release
+
+permissions:
+  contents: write
+
+on:
+  push:
+    tags:
+      - v[0-9]+.*
+
+jobs:
+  create-release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: taiki-e/create-gh-release-action@v1
+        with:
+          # (Optional) Path to changelog.
+          changelog: CHANGELOG.md
+          # (Optional) Reject releases from commits not contained in branches
+          # that match the specified pattern (regular expression)
+          branch: main
+          # (Required) GitHub token for creating GitHub Releases.
+          token: ${{ secrets.GITHUB_TOKEN }}

CHANGELOG.md

@@ -5,7 +5,9 @@ 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 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+<!-- next-header -->
+
+## Unreleased - ReleaseDate
 
 ### Added
 

release.toml

@@ -0,0 +1,5 @@
+pre-release-replacements = [
+  {file="CHANGELOG.md", search="Unreleased", replace="{{version}}"},
+  {file="CHANGELOG.md", search="ReleaseDate", replace="{{date}}"},
+  {file="CHANGELOG.md", search="<!-- next-header -->", replace="<!-- next-header -->\n\n## Unreleased - ReleaseDate", exactly=1},
+]