`--` missing in NPM script call on https://formatjs.io/docs/tooling/cli/#compilation

[jfhector]

First, thanks for the great library.

The issue

On the page https://formatjs.io/docs/tooling/cli/#compilation, I read:

npm run compile --help

Running that command doesn't work. I get:

$ npm run compile --help
No results for "run" "compile"

That's because -- is needed when passing options as part of executing a NPM script:
This works:

$ npm run compile -- --help

The same issue happens here too:

npm run extract --help

[longlho]

all the code is actually at formatjs/formatjs repo so you'd have to submit a PR there