v1.4.1

What's Changed

• Technical/Add commitspell linter by @bestwebua in #86
• Technical/Update gem documentation by @bestwebua in #87
• Technical/Update gem development dependencies by @bestwebua in #88
• Technical/Update gem version by @bestwebua in #89
• Ruby SmtpMock v1.4.1 by @bestwebua in #90

Full Changelog: v1.4.0...v1.4.1