adding binary code

Change line 32 - 34 from: 
    tfRel,titleRel = findTF(relevant)
    tfNonRel,titleNonRel = findTF(nonrel)
    tfQuery = findQueryTF(query)
 to : 
    tfRel,titleRel = findTFBinary(relevant)
    tfNonRel,titleNonRel = findTFBinary(nonrel)
    tfQuery = findQueryTFBinary(query)