LONDON (AP) — Helen Garner, an acclaimed Australian writer whose celebrity fans include singer Dua Lipa, won the prestigious Baillie Gifford Prize for nonfiction on Tuesday for what judges called her addictive and candid diaries. Garner, 82, was named winner of the 50,000 pound ($65,000) prize at a ceremony in London for “How to End a Story.” Journalist Robbie Millen, who chaired the prize jury, said Garner was the unanimous choice of the six judges. Millen said the judges were captivated by