The book prescribes to use art update in order to update the tool. However it seems this command is not shipped with art yet; something probably needs to be clarified.
$ art update
error: Found argument 'update' which wasn't expected, or isn't valid in this context
USAGE:
art [SUBCOMMAND]
For more information try --help
$ art --help
art 2.0.1
vitiral
Design documentation tool for everybody.
USAGE:
art [SUBCOMMAND]
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
SUBCOMMANDS:
check Check your project for errors and warnings.
export Export artifacts in some format.
fmt Format the project and change the filetype.
help Prints this message or the help of the given subcommand(s)
init Initialize the directory for artifact.
ls List and filter artifacts
serve Serve the web-ui via http.
The book prescribes to use
art update
in order to update the tool. However it seems this command is not shipped with art yet; something probably needs to be clarified.