Add setup instructions for argon fan

docs/README.md

@@ -12,6 +12,7 @@ Items marked ```REQUIRED``` are assumed to be setup and working. You've been war
 
 * [Base Firmware (REQUIRED)](base.md)
 * [Finalize Setup (REQUIRED)](finalize_setup.md)
+* [Argon Fan Setup (VERY SMART)](fan.md)
 * [Setup swap (REQUIRED)](swap.md)
 * [Additional Networking Setup (REQUIRED)](networking.md)
 * [Automatic WiFi Setup (VERY SMART)](auto_wifi_setup.md)

docs/fan.md

@@ -0,0 +1,30 @@
+# Argon Fan
+
+The below commands will setup the Argon Fan we recommend as a cooling solution.
+
+## Setup
+
+``` sh
+
+DL_URL=$(curl https://git.kemonine.info/api/v1/repos/PiFrame/piframe-go/releases | jq -r '.[0].assets[] | select(.name == "fan") | .browser_download_url')
+wget $DL_URL -O /usr/local/bin/pf-fan
+chmod a+x /usr/local/bin/pf-fan
+cat > /etc/systemd/system/argon-fan.service <<EOF
+[Unit]
+Description=Manage the argon fan attached to this device
+
+[Service]
+Type=simple
+User=root
+ExecStart=/usr/local/bin/pf-fan
+TimeoutSec=15
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+systemctl daemon-reload
+systemctl enable --now argon-fan
+
+```