(Note: This burger was not made by robots.) Photo: The Chronicle Related Links The Robots are Coming Here is a subversive burrito-making robot [Video] Last August, modern automat Eatsa — with its behind-the-scenes and hidden from view workforce — made its San Francisco debut. We’ve even seen a PB&J-making robot that cranks out sandwiches popping up around town over the past year. Well, now it looks like a hamburger-making robot will soon be joining the ranks of these practically human-free dining offerings. According to Tech Insider, San Francisco-based Momentum Machines has posted job listings on Craigslist to staff a forthcoming retail storefront, located at 680 Folsom Street (deep in the heart of