By David Henry Sterry NEW YORK CITY: Ten years ago, before the Kindle, Facebook and Twitter, Arielle, my ex-agent and current wife, and I both had books coming out. One was about my childhood hero, Leroy “Satchel” Paige. The other was about her childhood hero, Jane Austen. Our publishers, Random House and Simon & Schuster, seemed disturbingly uninterested in helping …