Meghan Markle is following in the footsteps of another ex-royal, Sarah Ferguson, with her latest career move INSIDER 4 hrs ago mfriel@businessinsider.com (Mikhaila Friel) © Provided by INSIDER The Duchess of Sussex, left, and The Duchess of York at a book signing in 2006, right. Daniel Leal-Olivas/WPA Images/Getty Images, Amy Sussman/Getty Images Meghan Markle has announced plans to publish her first children's book in June. Markle's post-royal career echoes Sarah Ferguson's, who has written 35 children's books. Ferguson was married to Prince Andrew from 1986 until 1996....