updated README

Author: kronoc

README

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+API to give you a list of wikipedia article suggestions based on articles you have also read. See https://github.com/ilvar/hack17extension for the browser extension which uses this.
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 You need the neo4j python driver in order for this code to be useful, and for neo4j to be running in an obvious place.
 
 You also need a graphdb installed in a neo4j database, like the one included in the project.