Setting Up Wifi Stretch Lite (Command line)

Question

I am using the following command

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

and my file looks like this

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=GB

network={
        ssid="your ssid here"
        psk="your psk here"
        key_mgmt=WPA2-PSK
}

Obviously with the correct ssid and pass... However, when I run sudo ifconfig or wget it doesn't connect to the internet. Is there something I am missing?

This is a pi zero w

Is there something else missing for it to work?