Lights up on Washington Heights! Before Hamilton became a global phenomenon, before Lin-Manuel Miranda became a household name, a little show called In the Heights shook up Broadway with its hip-hop and salsa soundtrack and big, bilingual heart. In the new book In the Heights: Finding Home, Lin-Manuel Miranda, Quiara Alegría Hudes, and Jeremy McCarter tell the story of the show’s humble beginnings, from rehearsals in a bookstore basement to the Broadway smash (and soon-to-be feature film!) that created an…