docs: First take on describing feature toggle

docs/sources/installation/configuration.md

@@ -354,6 +354,11 @@ options are `Admin` and `Editor`. e.g. :
 Viewers can edit/inspect dashboard settings in the browser. But not save the dashboard.
 Defaults to `false`.
 
+### editors_can_admin
+
+Editors can administrate dashboards, folders and teams they create.
+Defaults to `false`.
+
 ### login_hint
 
 Text used as placeholder text on login page for login/username input.

docs/sources/permissions/organization_roles.md

@@ -28,6 +28,9 @@ Can do everything scoped to the organization. For example:
 - Can create and modify dashboards & alert rules. This can be disabled on specific folders and dashboards.
 - **Cannot** create or edit data sources nor invite new users.
 
+This role can be tweaked via Grafana server setting [editors_can_admin]({{< relref "installation/configuration.md#editors_can_admin" >}}). If you set this to true users
+with **Editor** can also administrate dashboards, folders and teams they create. Useful for enabling self organizing teams.
+
 ## Viewer Role
 
 - View any dashboard. This can be disabled on specific folders and dashboards.