`getstorybook`したら`Unsupported Project type.`と言われた

getstorybook  
# getstorybook - the simplest way to add a storybook to your project. 

# • Detecting project type. ✓
#    Unsupported Project type. (code: UNDETECTED)
#    Visit https://storybook.js.org for more information.

最低限reactとreact-domをインストールしないと駄目です🙅

npm init -y
npm i react react-dom

おわり。