“With news publications increasingly charging for their once-free websites and apps, they face a critical question: Will readers pay for digital content? Now, one Internet start-up has put a twist on that question: Will readers pay for a journalist?The start-up, called Beacon, kicked off a campaign on Wednesday to support Shane Bauer, a hiker and journalist who was imprisoned in Iran for 26 months. If all goes as planned, readers will fund Mr. Bauer’s entire $75,000 salary for a year to report on the American prison system.”