message: chore: update readme on automatic locale detection
diff: @@ -760,6 +760,10 @@ Generated by cloudfront (CloudFront)
  It commonly occurs when the size of the response is too large. Lambda@Edge currently does have a limitation of 1 MB returned by the origin request handler. See: https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/lambda-generating-http-responses-in-requests.html#lambda-generating-http-responses-errors. Unfortunately, there may not be a workaround other than trying to ensure your responses are smaller.
  +### Automatic locale detection
  +
  +Ensure you forward `Accept-Language` header via CloudFront configuration, otherewise it is not able to determine which languages the user understands and/or prefers. By default it is forwarded but if you override with your own configuration, you should add it back.
  +
  ## Contributing
  Please see the [contributing](./CONTRIBUTING.md) guide.
  