<!-- IMPORTANT: Do not submit PRs with only formatting / PEP8 / line length changes. -->

# Summary

<!--e.g. This PR fixes ABC or adds the ability to do XYZ...-->

# Related issues

<!-- e.g. #123 or Roadmap goal # https://github.com/pirate/ArchiveBox/wiki/Roadmap -->

# Changes these areas

- [ ] Bugfixes
- [ ] Feature behavior
- [ ] Command line interface
- [ ] Configuration options
- [ ] Internal architecture
- [ ] Snapshot data layout on disk