v0.1.0-alpha.4

This preproduction release adds the following:

• The Davies-Bouldin (DB) CVI
• Code coverage reporting
• Readme documentation

What's Changed

• Feature/db by @AP6YC in #23
• Feature/readme update by @AP6YC in #25
• Release/v0.1.0 alpha.4 by @AP6YC in #26

Full Changelog: v0.1.0-alpha.3...v0.1.0-alpha.4