Bump tomlkit from 0.5.7 to 0.5.8 in /docs
Bump tomlkit from 0.5.7 to 0.5.8 in /docs

Bumps [tomlkit](https://github.com/sdispater/tomlkit) from 0.5.7 to 0.5.8.
- [Release notes](https://github.com/sdispater/tomlkit/releases)
- [Changelog](https://github.com/sdispater/tomlkit/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sdispater/tomlkit/compare/0.5.7...0.5.8)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
sobolevn/django-split-settings