PS C:\Users\horne> umi help
  Usage: umi <command> [options]

  Commands:

    build     build application for production
    config    umi config cli
    dev       start a dev server for development
    generate  generate code snippets quickly
    help      show command helps
    plugin    inspect umi plugins
    version   show umi version
    webpack   inspect webpack configurations

  Run `umi help <command>` for more information of specific commands.
  Visit https://umijs.org/ to learn more about Umi.