Gov. Phil Murphy, who led the ultimately successful fight for recreational cannabis in New Jersey, added his name to a new industry effort to encourage marijuana users to buy weed from legal businesses rather than on the street. He is the first elected official to join a national campaign launched Thursday by the U.S. Cannabis Council, marijuana trade associations, and several cannabis businesses — some of them minority-owned. It is called “Buy Legal” and is designed to encourage marijuana users to buy weed from state-licensed, regulated and taxed businesses rather than illegally from dealers….