Bravo has renewed “The Real Housewives of Atlanta.”Move comes after the Atlanta-based incarnation delivered the “Real Housewives” franchise’s best ratings perf ever. Nonfiction series averaged 1.3 million adults 18-49 in its first Atlanta-based season, and nearly 1.5 million total viewers. Season’s reunion special produced “Real Housewives’ ” biggest single-episode numbers, garnering 2.1 million adults 18-49 and 2.8 million total viewers. Series is produced by True Entertainment. Steven Weinstock and Glenda Hersh are exec producers.