MIAMI — A Miami-Dade corrections officer has been relieved of duty after he was arrested for allegedly posting explicit images of his ex-wife on Twitter. Teddy Joseph, 39, was charged last week under Florida’s “revenge porn” law, which makes cyber sexual harassment a first-degree misdemeanor. The law was first passed in 2015 aimed at combating the proliferation of people posting sexual photos and video of their ex-partners. The law, however, has been used sparingly across Florida. Lawmakers this month did pass a law criminalizing “deep fakes,” images doctored to appear as pornographic ones, an…