Country artist Madeline Merlo is coming back to Penticton. A previous headliner at the iconic Peachfest, the Maple Ridge singer-songwriter will take the stage for the main event of this year’s Tim Horton’s Country Night at the festival on Aug. 6. Merlo is a platinum-certified No. 1 songwriter, currently signed to BBR Music Group and BMG Nashville. Her breakthrough moment came in 2015 when she won the Canadian Country Music Awards rising star hon…