add iwd instructions

arch/workstation.md

@@ -50,6 +50,23 @@ pacman -S wireless-regdb
 
 Edit /etc/conf.d/wireless-regdom to set the domain
 
+Switch to iwd for the NetworkManager backend.
+
+```bash
+pacman -S iwd
+```
+
+Edit /etc/NetworkManager/conf.d/wifi_backend.conf
+
+```conf
+[device]
+wifi.backend=iwd
+```
+
+```bash
+systemctl restart NetworkManager
+```
+
 ### Microcode
 
 ```bash
@@ -133,7 +150,7 @@ podman kube play --network test podman-deploy.yaml --replace
 ## Docker
 
 ```bash
-podman -Sy docker docker-compose
+pacman -Sy docker docker-compose
 usermod -aG docker ducoterra
 ```