added install instructions to prevent screen blanking
added install instructions to prevent screen blanking

gtRfnkN/photobooth,informatik-mannheim/gify-box,informatik-mannheim/gify-box,gtRfnkN/photobooth,gtRfnkN/photobooth,gtRfnkN/photobooth,informatik-mannheim/gify-box,gtRfnkN/photobooth