updated bindQueue() example in README (fixes #53)
updated bindQueue() example in README (fixes #53)

CopernicaMarketingSoftware/AMQP-CPP,fantastory/AMQP-CPP,CopernicaMarketingSoftware/AMQP-CPP,toolking/AMQP-CPP,fantastory/AMQP-CPP,toolking/AMQP-CPP