ATLANTA — While funding for transportation improvements and another attempt to allow limited use of medical marijuana have been grabbing headlines across Georgia leading up to this year’s legislative session, education figures to play a bigger role under the Gold Dome than it did last year. Look for two significant initiatives from Gov. Nathan Deal, who is about to be sworn in for his second term, concerning education: reforming and updating the beleaguered funding formula and, perhaps more controversial, some kind of intervention for persistently failing schools.