Config section for multiple wifi points to use

[torontonightclub-oss]

its easy to set up the wifi at home, but when we bring the ledmatrix to someone elses house it wont connect without bringing a laptop and setting up the wifi for that house via the raspberry pis settings. a good feature would be to pre enter the various wifis for it at home and then it will work plug and play where you take it. I tried using a wpa_supplicant.conf in the root of the sd card with the following info

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

network={
ssid="heresapoint"
psk="54333455655"
key_mgmt=WPA-PSK
}

network={
ssid="workpoint"
psk="54353895475937"
key_mgmt=WPA-PSK
}

network={
ssid="anothert"
psk="moreasssss33455"
key_mgmt=WPA-PSK
}

and when i ran it at work it just went to a black screen on startup

[ChuckBuilds]

This sounds more like a raspberry pi issue than an LEDMatrix issue. I'm not going to be working on this