docs: fix typo and add example

README.md

@@ -60,7 +60,7 @@ domain.assign(new targets.CloudFrontTarget(distribution))
 
 ### CloudFront helper
 
-Instead of assigning `certificate`, `domainNames` and `enableIpv6` properties individually, you may choose to use the one-liner helper utility method `configureCloudFront()` to set all three values at once (don't forget to use object spread syntaxs):
+Instead of assigning `certificate`, `domainNames` and `enableIpv6` properties individually, you may choose to use the one-liner helper utility method `configureCloudFront()` to set all three values at once (don't forget to use `...` object spread syntax):
 
 ```ts
 const distribution = new cloudfront.Distribution(this, 'Distribution', {