fixup! [RFC-0010] Add multi-tenant workload identity support for AWS Bucket

Signed-off-by: cappyzawa <[email protected]>

Author: cappyzawa

docs/spec/v1/buckets.md

@@ -186,18 +186,13 @@ data:
 
 #### AWS
 
-When a Bucket's `.spec.provider` field is set to `aws`, the source-controller
-will attempt to communicate with the specified [Endpoint](#endpoint) using the
-[Minio Client SDK](https://github.com/minio/minio-go).
-
-Without a [Secret reference](#secret-reference), authorization using
-credentials retrieved from the AWS EC2 service is attempted by default. When
-a reference is specified, it expects a Secret with `.data.accesskey` and
-`.data.secretkey` values, used to authenticate with static credentials.
-
-The Provider allows for specifying the
-[Amazon AWS Region](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html#concepts-available-regions)
-using the [`.spec.region` field](#region).
+For detailed setup instructions, see: https://fluxcd.io/flux/integrations/aws/#for-amazon-simple-storage-service
+
+When using a [Secret reference](#secret-reference), it expects a Secret with 
+`.data.accesskey` and `.data.secretkey` values. Without a Secret reference, 
+authorization using credentials retrieved from the AWS EC2 service is attempted 
+by default. For Workload Identity authentication, use the 
+[`.spec.serviceAccountName` field](#service-account-reference).
 
 ##### AWS EC2 example