`Fs.createWriteStreamOptions` returns wrong type

[banacorn]

Fs.createWriteStreamOptions should return something of createWriteStreamOptions instead of createReadStreamOptions

reason-nodejs/src/Fs.re

Lines 500 to 512 in b7b4134

	[@bs.obj]
	external createWriteStreamOptions:
	(
	~flags: string=?,
	~fd: fd=?,
	~mode: int=?,
	~autoClose: bool=?,
	~emitClose: bool=?,
	~start: int=?,
	~fs: Js.t({..})=?,
	unit
	) =>
	createReadStreamOptions;

[TheSpyder]

I've included this change in TheSpyder/rescript-nodejs#1 (I just published v14)