Adds a text <input> field below the edit/ box, which allows to
set the AuthorName+ which then will get stored, when the page is
saved. This name is then also stored client-side as cookie for
at least 45 minutes.

Before using this plugin, you must consider, that it eventually
allows to override the correct username that ProtectedMode plugins
already provided. And there is no way to prevent users from using
faked names (because this plugin cannot check if a username was
already 'registered' and thus can't initiate a password query).
prev << "edit/pageimage"
next >> "edit/deletebutton.js"

You cannot modify the README.plugins file, but anyhow any ideas or suggestion should as usually get filed on BugReports, UserSuggestions or even better the README.plugins.Discussion.