Meghan Markle and Prince Harry have encouraged their fans to contribute to fundraising efforts in the wake of Australia's devastating wildfires.The Duke and Duchess of Sussex posted an emotional message to the people of Australia, having visited New South Wales during their royal tour in 2018.Meghan and Harry join Queen Elizabeth, Kate Middleton, and Prince William, all of whom have shared messages of support to Australia.The eastern and southern coasts of Australia have been seriously affected