v0.2.1

Added

• introduce absolute changes (#63)
• format numbers with unit (#60)
• add colors to output (#53)
• create a check command (#46)

Other

• add format option to check command
• cross build linux binaries (#61)
• update project goals
• update readme with check command
• move format option to shared module
• make linux-amd64 build run outside of docker (#56)
• update dependencies (#57)
• move writing code out of service (#52)
• move display logic in cmd (#51)
• build deb files for linux (#50)
• make sure the check command answers as expected (#49)
• send a notification after release
• increase coverage for add command
• cover init command
• add license section to readme