change setting names in docs

docs/reference/settings/data-frames-settings.asciidoc

@@ -20,18 +20,18 @@ file.
 [[general-data-frames-settings]]
 ==== General {transforms} settings
 
-`xpack.data_frame.enabled`::
+`xpack.transform.enabled`::
 Set to `true` (default) to enable {transforms} on the node. +
 +
 If set to `false` in `elasticsearch.yml`, the {transform} APIs are disabled on the node.
 Therefore the node cannot start or administrate {transform} or receive transport (internal)
 communication requests related to {transform} APIs.
 +
 IMPORTANT: If you want to use {transform} features in your cluster, you must have
-`xpack.data_frame.enabled` set to `true` on all master-eligible nodes. This is the
+`xpack.transform.enabled` set to `true` on all master-eligible nodes. This is the
 default behavior.
 
-`xpack.data_frame.num_transform_failure_retries` (<<cluster-update-settings,Dynamic>>)::
+`xpack.transform.num_transform_failure_retries` (<<cluster-update-settings,Dynamic>>)::
 The number of times that a {transform} retries when it experiences a
 non-fatal error. Once the number of retries is exhausted, the {transform}
 task will be marked as `failed`. The default value is `10` with a valid minimum of `0`