ci: release workflow and documentation

.github/workflows/release.yml

@@ -34,5 +34,5 @@ jobs:
         uses: stefanzweifel/git-auto-commit-action@v4
         with:
           branch: main
-          commit_message: 'docs: update CHANGELOG.md for ${{ github.ref_name }} [skip ci]'
+          commit_message: 'chore(release): v${{ github.ref_name }} [skip ci]'
           file_pattern: CHANGELOG.md

PUBLISHING.md

@@ -0,0 +1,23 @@
+# Publishing a release
+
+This document describes the process of publishing a new version of the package.
+
+1. Update the version in the `composer.json` file.
+2. Commit the changes.
+	-	```bash
+		git commit -m "chore: bump version to <version>"
+		```
+
+		Where `<version>` is the new version number (e.g. `1.2.3`).
+3. Create a new tag.
+	-	```bash
+		git tag v<version>
+		```
+
+		Where `<version>` is the new version number (e.g. `1.2.3`).
+4. Push the changes.
+	-	```bash
+		git push origin master --tags
+		```
+
+A release will automatically be created.