install this package will create pre-commit file under .git/hooks
do nim check,nimpretty to staged files and git add after tasks done.
Usage:
stage {SUBCMD} [sub-command options & parameters]
where {SUBCMD} is one of:
help print comprehensive or per-cmd help
init init pre commit git hook
ghWorkflow init github workflow file
gitignore init .gitignore
fixStyle fix code style through `nimpretty`
checkError check error through `nim check`
workflow checkError,fixStyle and run git add