By Daniel Moxon Lewis Hamilton feels more must be done to increase diversity in Formula 1 after noticing a lack of it in a Mercedes team photo. As is tradition, the team posed for pictures in the Abu Dhabi Grand Prix pit lane to mark the end of another season. The team’s trackside personnel all gathered behind the two cars and drivers Hamilton and George Russell so the snaps could be taken. But while sat there, Hamilton couldn’t help but notice the lack of people from underrepresented groups among the crowd behind him. And he brought it up as he reflected on the progress made since the Hamilto…