CINCINNATI — Six months after launching his home-delivery service, Grocery Runners, founder Bryan Melendez is convinced he made the right call. “It’s gone wonderfully,” he said. “The passion level we receive from people who use the service is ridiculously high.” Melendez said eight to 10 customers each day call Grocery Runners to pick up their online orders from Kroger’s ClickList system and bring those groceries their home. He expects the company to start making a profit in