The publishers of the classic American novel “Gone with the Wind” will include a “harmful” trigger warning and an introduction that addresses “white supremacy,” the Telegraph reported.Pan Macmillan, a publishing house based in London, has decided to affix a trigger warning to Margaret Mitchell’s 1936 novel. The book, which takes place in 1861, follows the story of Scarlett O’Hara, the daughter of a southern plantation owner, and her romance with Captain Rhett Butler during the Civil War. The cautionary note at the front of the new edition of the book will warn readers that it contains “racist” themes that could be “hurtful or indeed harmful.”“Gone with the Wind is a novel which includes problematic elements including the romanticisation of a shocking era in our history and the horrors of slavery,” the trigger warning states. “The no …