v0.4.0

What's Changed

• feat: ✨ allow some environment variables to be logged as attributes by @jbleduigou in bab9a9b
• doc: 📝 add sections about log level by @jbleduigou in #5
• doc: 📝 change to snake case by @jbleduigou in #6
• doc: 📝 provide examples of log output by @jbleduigou in #8

Full Changelog: v0.3.0...v0.4.0