docs(readme): remove async infront of response.clone()

[SgtPooki]

Purpose

Reduce confusion

Changes

Update readme to remove an awaited response.clone() call in the highWaterMark section.

Additional information

source code shows response is a sync call to a new Response constructor:

node-fetch/src/response.js

Lines 84 to 101 in 3944f24

	/**
	* Clone this response
	*
	* @return Response
	*/
	clone() {
	return new Response(clone(this, this.highWaterMark), {
	type: this.type,
	url: this.url,
	status: this.status,
	statusText: this.statusText,
	headers: this.headers,
	ok: this.ok,
	redirected: this.redirected,
	size: this.size,
	highWaterMark: this.highWaterMark
	});
	}

---

• I updated readme

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[github-actions]

🎉 This PR is included in version 3.2.5 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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