Create README.md

README.md

+ROS Driver for USB Video Class Cameras
+======================================
+
+`libuvc_camera` is a ROS driver that supports webcams and other UVC-standards-compliant video devices.
+It's a cross-platform replacement for `uvc_camera`, a Linux-only webcam driver.
+
+Documentation is available on the ROS wiki: [libuvc_camera](http://wiki.ros.org/libuvc_camera).