Bump sitemap_generator from 6.0.0 to 6.0.1
Bump sitemap_generator from 6.0.0 to 6.0.1

Bumps [sitemap_generator](https://github.com/kjvarga/sitemap_generator) from 6.0.0 to 6.0.1.
- [Changelog](https://github.com/kjvarga/sitemap_generator/blob/master/CHANGES.md)
- [Commits](https://github.com/kjvarga/sitemap_generator/compare/v6.0.0...v6.0.1)
ossfriday/ossfriday,ossfriday/ossfriday,ossfriday/ossfriday,ossfriday/ossfriday