v2.1.0

What's Changed

• Create CODE_OF_CONDUCT.md by @LorenzoLeonardo in #48
• Update Cargo.toml by @LorenzoLeonardo in #50
• Create CONTRIBUTING.md by @LorenzoLeonardo in #49
• Acto trait by @LorenzoLeonardo in #51

Full Changelog: v2.0.1...v2.1.0