message: Upgrade guide : fix typo "Bucet" => "Bucket"
diff: @@ -39,7 +39,7 @@ And here's how we access it in our function.
  + import { Bucket } from "@serverless-stack/node/bucket";
  - process.env.BUCKET_NAME
  -+ Bucet.myFiles.bucketName
  ++ Bucket.myFiles.bucketName
  ```
  Following are the steps to upgrade.
  