[Feature Request]: suggest matching commands if the user mistypes

[jamesgeorge007]

Say we've the following CLI definition:-

my-cli <command> [options]

init - Initialize
serve - serve the project
generate - scaffold out a new project

-V, version
-h, help information

If we're to go with commander.js, tj/commander.js#1015 (comment) would make it possible. While, yargs is shipped with a dedicated recommendCommands() method as part of the API. It would be great if the feature was implemented here with sade as well.

[jamesgeorge007]

@lukeed I would be happy to submit a PR 👍