update README with basic explanation

README.md

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 # seekertools
+
+what does your soul seek?
+
+perhaps it is perfectly organized and tagged audio files.
+
+## what it does
+right now, only analyis and debug output is implemented.
+
+eventually, the tools will include the ability to perform common audio tagging needs, such as guessing tags from filenames or filling in missing info from the Discogs API./