Allows to specify URL abbreviations on one or more summary pages.
This can be done using a table or a definition list to assign
each URL a title, which then can be used on other pages as square
bracket reference.

The 'instanturl_find' plugin in addition allows to use the find:+
moniker to perform partial searches in the list of URL
abbreviations, but also in the list of interwiki monikers. As
fallback it searches for matching page names or redirects to
prev << "linking/linkdatabase"
next >> "linking/titlefix"

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.