docs: Add instructions for enabling Docker Desktop's host networking …

…to support the Web UI. (y-scope#741)

docs/src/user-guide/quick-start-cluster-setup/single-node.md

@@ -7,6 +7,8 @@ A single-node deployment allows you to run CLP on a single host.
 * [Docker]
   * If you're not running as root, ensure `docker` can be run
     [without superuser privileges][docker-non-root].
+  * If you're using Docker Desktop, ensure version 4.34 or higher is installed, and
+    [host networking is enabled][docker-desktop-host-networking].
 * Python 3.8 or higher
 
 ## Starting CLP
@@ -34,4 +36,5 @@ sbin/stop-clp.sh
 ```
 
 [Docker]: https://docs.docker.com/engine/install/
+[docker-desktop-host-networking]: https://docs.docker.com/engine/network/drivers/host/#docker-desktop
 [docker-non-root]: https://docs.docker.com/engine/install/linux-postinstall/#manage-docker-as-a-non-root-user