replace references to settings.yml

app/seeders/basic_data/setting_seeder.rb

@@ -51,8 +51,8 @@ module BasicData
           hash[definition.name] = definition.value || ''
         end
 
-        # deviate from the defaults specified in settings.yml here
+        # deviate from the defaults specified in the settings definition here
-        # to set a default role. The role cannot be specified in the settings.yml as
+        # to set a default role. The role cannot be specified in the definition as
         # that would mean to know the ID upfront.
         update_unless_present(settings, 'new_project_user_role_id') do
           Role.find_by(name: I18n.t(:default_role_project_admin)).try(:id)

docs/api/apiv3/tags/configuration.yml

@@ -1,7 +1,8 @@
 ---
 description: |-
   The configuration endpoint allows to read certain configuration parameters of the OpenProject instance.
-  Note that there is no 1:1 relationship between this endpoint and the settings you can find in your settings.yml.
+  Note that there is no 1:1 relationship between this endpoint and the settings an administrator has at hand to modify the behaviour
+  of the application via configuration.yml or ENV variables.
 
   For now this endpoint will only allow access to settings deemed useful for a client to know in general.