Add target option to npm readme

[waldreiter]

Target is the last option missing in the readme.

[waldreiter]

I found another missing option: --use-provides-module
Is this only used by facebook internally or should it be documented too?

[jimfb]

Markdown files don't usually have
elements, do they? Usually markdown is intended to be both human and machine readable, to the extent possible, right? cc @zpao who will know best.

[waldreiter]

It is allowed to have html elements. At least <iframe> is already used in the docs for inline videos. Here this is explained: Inline HTML.

[jimfb]

Right, but is it good style? Is it what we want to do here? My understanding (which is admittedly limited) is that we want to avoid HTML in the markdown files whenever possible. In the case of a linebreak, it seems avoidable, but maybe it's necessary/desirable here because we're in a table. Another option would be to use a coma or other form of punctuation. instead of a br. I don't have a strong preference here, mostly just flagging it for @zpao to take a look and make a call.

[zpao]

Yea, that's allowed. Note, you can always view the rendered output on github, even in PRs.

[zpao]

Thanks!

And don't worry about the --use-provides-module option. It really shouldn't be exposed but I don't really feel like making that happen with commoner, so meh.