help command

Display help.

ndext --help

When you run it, you can see:

NDExt:
  A utility that allows you to create extensions for Next Design.

Usage: Usage:
  NDExt [options] [command]

Options: Options:
  - version Display version information

Commands: Commands:
  install Install the project template. Please do it first.
  new <name> Create a project for the Next Design extension in the current folder.
  new-extp <name> Create an extension project using the ExtensionPoints library in the current folder.
  package the pack extension.
  uninstall Uninstalls the project template.