Release type: minor

- Add setting to specify summary via paragraph count
- Add new status to skip generation of a post
- Add setting to append ``ref`` parameter to links in feeds
- Configure logging handler via ``--log-handler`` CLI option
- Resolve intra-site links in summaries
- Warn when files are not processed due to disabled readers
- Add Medium post importer
- Improve GitHub Pages workflow
- Improve code test coverage
- Translate documentation into Simplified Chinese