First stable release! v0.0.1

Changelog:

• add spell list component from @GHMusicalCoder
• improve printing options from @yoshi-hun
• improve cards alignment from @nivthefox
• create a multi-stage docker image from @nipsufn

Docker images:

• docker pull demonsthere/rpg-cards:version-0.0.1
• docker pull demonsthere/rpg-cards:v0.0.1