added another example to the README file
added another example to the README file

JuniperChicago/rdfstore-js,JuniperChicago/rdfstore-js,antoniogarrote/rdfstore-js,JuniperChicago/rdfstore-js,nicola/rdfstore-js,nicola/rdfstore-js,ahmadassaf/RDF-Store-JS,nicola/rdfstore-js,antoniogarrote/rdfstore-js,antoniogarrote/rdfstore-js,antoniogarrote/rdfstore-js,JuniperChicago/rdfstore-js,ahmadassaf/RDF-Store-JS,nicola/rdfstore-js,ahmadassaf/RDF-Store-JS,ahmadassaf/RDF-Store-JS