By Henry Burt Bayern Munich moved to the top of the Bundesliga with an emphatic win over Mainz on Saturday afternoon. Julian Nagelsmann’s side have been steadily improving after a shaky start to the season and made easy work of their opponents today, finding themselves a goal up after just five minutes when Serge Gnabry controlled Sadio Mane’s cross and fired home. And the hosts well and truly took control of the game after 28 minutes, with Jamal Musiala playing a neat one-two with Eric Maxim Choupo-Moting and slotting the ball in to make it 2-0. Mainz had chances of their own in the first hal…