The co-founder of fashion brand Superdry is donating a million pounds to a campaign for a referendum on the final Brexit agreement as Britain prepares to outline in more detail how a no-deal outcome would work. Superdry co-founder gives £1m to Brexit vote campaign https://t.co/zNktlXfKBZ — Channel 4 News (@Channel4News) August 19, 2018 Superdry founder…