automatically generate release notes (#7)

Author: alexlanz

.github/workflows/build-and-publish.yml

@@ -39,3 +39,4 @@ jobs:
       - uses: aboutbits/github-actions-base/github-create-release@v2
         with:
           tag-name: 'v${{ steps.package.outputs.version }}'
+          generate-release-notes: 'true'