update documentation

Author: Laure-di

docs/data-sources/baremetal_easy_partitioning.md renamed to docs/data-sources/baremetal_partition_schema.md

@@ -1,18 +1,25 @@
 ---
 subcategory: "Elastic Metal"
-page_title: "Scaleway: scaleway_baremetal_easy_partitioning"
+page_title: "Scaleway: scaleway_baremetal_partition_schema"
 ---
 
-# scaleway_baremetal_easy_partitioning
+# scaleway_baremetal_partition_schema
 
-The scaleway_easy_partitioning data source allows you to retrieve a ready-to-use partitioning schema for a BareMetal server. This schema can be used for custom installations with optional swap and extra partitions.
+The scaleway_baremetal_partition_schema data source allows you to retrieve a ready-to-use partitioning schema for a BareMetal server. This schema can be used for custom installations with optional swap and extra partitions.
 
 This data source simplifies the process of generating valid partitioning configurations, especially useful when dealing with OS and offer compatibility requirements.
 
+## Partitioning Details
+
+The partitioning schema generated by the `scaleway_baremetal_partition_schema` data source includes a root (`/`) partition that is **20GB** in size by default.
+
+If additional storage is required, you can enable the `extra_partition` option to mount extra space on a custom path (e.g., `/data`).
+
+
 ## Example Usage
 
 ```hcl
-data "scaleway_easy_partitioning" "default" {
+data "scaleway_baremetal_partition_schema" "default" {
   offer_id         = "11111111-1111-1111-1111-111111111111"
   os_id            = "22222222-2222-2222-2222-222222222222"
   swap             = true