correct head file directory

installers/common.sh

@@ -196,7 +196,7 @@ function default_configuration() {
     sudo mv $webroot_dir/config/hostapd.conf /etc/hostapd/hostapd.conf || install_error "Unable to move hostapd configuration file"
     sudo mv $webroot_dir/config/dnsmasq.conf /etc/dnsmasq.conf || install_error "Unable to move dnsmasq configuration file"
     sudo mv $webroot_dir/config/dhcpcd.conf /etc/dhcpcd.conf || install_error "Unable to move dhcpcd configuration file"
-    sudo mv $webroot_dir/config/head /etc/resolvconf/resolvconf.d/ || install_error "Unable to move resolvconf head file"
+    sudo mv $webroot_dir/config/head /etc/resolvconf/resolvconf.d/head || install_error "Unable to move resolvconf head file"
     sudo resolvconf -u || install_error "Unable to update resolv.conf"