v0.3.1

What's Changed

• Add a BSD 3-Clause license by @roytsmart in #24
• Add citation metadata and instructions. by @roytsmart in #28
• Don't warn about the expected divisions by zero in MART. by @roytsmart in #29
• Expand the README and the documentation landing page. by @roytsmart in #30

Full Changelog: v0.3.0...v0.3.1