GONVICK, Minn. — The end has come for four newspapers in northwest Minnesota, but not for the commercial printing side of the publishing business associated with them. Dick Richards, who in 1972 founded Richards Publishing alongside his wife, Corrine, said the age of social media is a hard time for newspapers, especially those on the smaller side. “I think we all realized what’s happening, and that it’s going to social media,” he said. “Everybod…