v0.4.0

What's Changed

• Treat special files differently by @yassinebenaid in #65
• remove codecov and improve ci by @yassinebenaid in #66
• Support group command {cmd; cmd2} by @yassinebenaid in #67
• Add missing group tests by @yassinebenaid in #68
• cleanup by @yassinebenaid in #69
• Improve docs by @yassinebenaid in #70
• Support command substitution by @yassinebenaid in #71
• update docs by @yassinebenaid in #73

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