COSI-61: synthetic docs update for clarity

docs/metrics-overview.md

@@ -78,7 +78,7 @@ scality_cosi_driver_iam_requests_total{method=“DeleteAccessKey”,status=“er
 #### Creating Bucket Access
 
 1. Create an IAM user (`CreateUser`).
-2. Attach an inline policy for bucket access (`PutUserPolicy`).
+2. Attach an inline policy for bucket **access** (`PutUserPolicy`).
 3. Generate access keys for the IAM user (`CreateAccessKey`).
 
 #### Revoking Bucket Access
@@ -128,13 +128,13 @@ scality_cosi_driver_s3_requests_total{method=“DeleteBucket”,status=“succes
 
 ### Example S3 Workflow
 
-#### Creating a Bucket:
+#### Creating a Bucket
 
 1. Specify the bucket name and region.
 2. Use the `CreateBucket` operation to create the bucket.
 3. Configure bucket properties (e.g., policies, versioning) if needed.
 
-#### Deleting a Bucket:
+#### Deleting a Bucket
 
 1. Verify the bucket exists.
 2. Use the `DeleteBucket` operation to delete the bucket. Only empty bucket deletion is supported.