Caroline Framke Chief TV CriticIn 2013, after years of scraping by on improv and putting on free comedy shows for the joy of it, Amber Ruffin got what she thought might be her big break. “Saturday Night Live” was (finally) looking to add a Black woman to the cast after years without, and flew Ruffin to New York from Los Angeles to try out alongside many other comedians she’d long admired.