Say the wiki switch covers API keys and widgets, not public links

Public-link visitors edit only wikis they can edit themselves and approve
each edit. The docs also note that with authentication off every caller
is the owner's local user, so the switch has no effect there.

docs/content/Deploying/Access-Control.mdx

@@ -143,7 +143,7 @@ Sharing rules:
 - Each share carries an access level: **`viewer`** (read-only) or **`editor`** (read and modify).
 - `editor` is not the same as owner — an editor can change a resource but cannot delete it or re-share it.
 - Shared tools run server-side with the **owner's** credentials; a grantee never sees the owner's secrets.
-- A wiki's editors can edit its pages, but only its owner decides whether API, widget and public-link users can edit it through an agent (see [Wiki sources](/Sources/Wiki-sources#edits-from-the-api-widget-and-public-links)).
+- A wiki's editors can edit its pages, but only its owner decides whether API and widget users can edit it through an agent (see [Wiki sources](/Sources/Wiki-sources#edits-from-the-api-widget-and-public-links)).
 
 ### Resources an editor adds to someone else's agent