Serena Williams’ daughter Olympia isn’t afraid to drop some truth bombs! On Sunday, the tennis champ shared a hilarious story on Twitter, retelling the moment that her daughter Olympia once called her out for wearing a wig. “Nice lady: I love your hair,” the pregnant tennis star, 41, began her now-viral Tweet. “Me: Awww Thanks! Olympia: It’s a WIG!!!” Nice …