My belief, which happens to be distressingly controversial in this day and age since GitHub subverted and repurposed readme files: the GitHub repository actively shouldn’t have screenshots. A readme should have info about the project, building, that kind of thing, stuff that’s relevant to the source, and things like screenshots should be elsewhere (… and certainly not stored inside the repository, as is far too often done—major cause of repository bloat), on a marketing page or similar. In this case, this is the source code repository, as is traditional, and the project’s homepage is on AMO, so that’s where things like screenshots go, as they should in that model. The fault here is merely that the wrong URL was provided for the submission.
