Note that the screenshot is taken from
the /assets directory or the directory that contains the stable readme.txt (tags or trunk). Screenshots in the /assets
directory take precedence. For example, /assets/screenshot-1.png would win over /tags/4.3/screenshot-1.png
(or jpg, jpeg, gif).
We want a screenshot of an article with the badge and a screenshot of the settings screen.
Add a couple of screenshots of the plugin to the readme.txt.
According to the example readme:
We want a screenshot of an article with the badge and a screenshot of the settings screen.