fix tfproviderdocs lint

Author: yfodil

docs/resources/edge_services_head_stage.md

@@ -37,7 +37,7 @@ resource "scaleway_edge_services_head_stage" "main" {
 
 ## Attributes Reference
 
-This resource does not export any attributes.
+No additional attributes are exported.
 
 ## Import
 

docs/resources/edge_services_plan.md

@@ -22,6 +22,10 @@ resource "scaleway_edge_services_plan" "main" {
 - `name` - (Optional) The name of the plan.
 - `project_id` - (Defaults to [provider](../index.md#project_id) `project_id`) The ID of the project the plan is associated with.
 
+## Attributes Reference
+
+No additional attributes are exported.
+
 ## Import
 
 Plans can be imported using `{project_id}/{plan_name}`, e.g.