fix: cancel request example import (#1513)

* Fix example

* Fix formatting

Co-authored-by: Linus Unnebäck <linus@folkdatorn.se>

Co-authored-by: Linus Unnebäck <linus@folkdatorn.se>

README.md

@@ -470,7 +470,7 @@ You may cancel requests with `AbortController`. A suggested implementation is [`
 An example of timing out a request after 150ms could be achieved as the following:
 
 ```js
-import fetch from 'node-fetch';
+import fetch, { AbortError } from 'node-fetch';
 
 // AbortController was added in node v14.17.0 globally
 const AbortController = globalThis.AbortController || await import('abort-controller')
@@ -484,7 +484,7 @@ try {
 	const response = await fetch('https://example.com', {signal: controller.signal});
 	const data = await response.json();
 } catch (error) {
-	if (error instanceof fetch.AbortError) {
+	if (error instanceof AbortError) {
 		console.log('request was aborted');
 	}
 } finally {
@@ -868,4 +868,4 @@ Thanks to [github/fetch](https://github.com/github/fetch) for providing a solid
 [error-handling.md]: https://github.com/node-fetch/node-fetch/blob/master/docs/ERROR-HANDLING.md
 [FormData]: https://developer.mozilla.org/en-US/docs/Web/API/FormData
 [Blob]: https://developer.mozilla.org/en-US/docs/Web/API/Blob
-[File]: https://developer.mozilla.org/en-US/docs/Web/API/File
+[File]: https://developer.mozilla.org/en-US/docs/Web/API/File