Fix typo on controller config docs

website/content/docs/configuration/controller.mdx

@@ -33,7 +33,7 @@ controller {
     var (env://) from which the URL will be read; or a direct database URL (postgres://).
 
 - `public_cluster_addr` - Specifies the public host or IP address (and
-optionally port) at which the worker can be reached _by workers_. This will be
+optionally port) at which the controller can be reached _by workers_. This will be
 used by workers after initial connection to controllers via the worker's
 `controllers` block. This defaults to the address of the listener marked for
 `cluster` purpose. This is especially useful for cloud environments that do not