DOCSP-10243 doc updates to example (#22)

Author: kanchana-mongodb

source/includes/extracts-data-lake.yaml

@@ -19,7 +19,7 @@ content: |
        - Name of the provider of the cloud service where {+data-lake-short+} 
          can access the S3 Bucket data stores. 
 
-         {+data-lake-short+} only supports ``AWS``.
+         {+data-lake-short+} only supports ``aws``.
 
      * - ``cloudProviderConfig.aws.
          iamAssumedRoleARN``

source/reference/api/dataLakes-update-one-tenant.txt

@@ -88,7 +88,7 @@ Request Body Parameters
      - Name of the provider of the cloud service where {+data-lake-short+} 
        can access the S3 Bucket.
 
-       {+data-lake+} supports only ``AWS``.
+       {+data-lake+} supports only ``aws``.
 
        Required if specifying ``cloudProviderConfig``.
 
@@ -185,7 +185,7 @@ Request
     --request PATCH "https://cloud.mongodb.com/api/atlas/v1.0/groups/{GROUP-ID}/dataLakes/{NAME}?pretty=true"
     --data '{ 
       "cloudProviderConfig" : {
-        "AWS" : {
+        "aws" : {
           "iamAssumedRoleARN" : "arn:aws:iam::123456789012:role/ReadS3BucketRole",
           "testS3Bucket" : "user-metric-data-bucket"
         }