def best_match(string_a, *string_b)
      similarities(string_a, *string_b).max_by { |_k, v| v }[0]
    end
def best_match(string_a, *string_b)
      similarities(string_a, *string_b).max_by { |_k, v| v }[0]
    end
Returns the best match from array b to string a based on percent.