Include filename in failure message.  Add reminder to Readme.md.
Merge branch 'load-image-error-message' of https://github.com/catseye/v86 into catseye-load-image-error-message
Merge branch 'load-image-error-message' of https://github.com/catseye/v86
Merge branch 'catseye-load-image-error-message'