This plugins provides a (probably) better search function
with the default page name "PowerSearch". It tries to guess
a value, which tells something about how good a page matches
the searched words and orders the found pages list by this
(possibly not very useful) value. It prints the top 10 results
more verbose.
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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.