Update readme

README.md

@@ -13,17 +13,11 @@ gem "zxcvbn-ruby", :require => 'zxcvbn'
 Example usage:
 
 ```ruby
-require 'zxcvbn'
-
-class User < Struct.new(:username, :password)
-  def password_strength
-    Zxcvbn.test(password, [username, 'sitename'])
-  end
-end
-
->> User.new('alfred', '@lfred2004').password_strength
-# => #<Zxcvbn::Score:0x007fafd0c779a0 @entropy=7.895, @crack_time=0.012, @crack_time_display="instant", @score=0, @match_sequence=[#<Zxcvbn::Match matched_word="alfred", token="@lfred", i=0, j=5, rank=1, pattern="dictionary", dictionary_name="user_inputs", l33t=true, sub={"@"=>"a"}, sub_display="@ -> a", base_entropy=0.0, uppercase_entropy=0.0, l33t_entropy=1, entropy=1.0>, #<Zxcvbn::Match i=6, j=9, token="2004", pattern="year", entropy=6.894817763307944>], @password="@lfred2004", @calc_time=0.003048>
-
->> User.new('alfred', 'asdfghju7654rewq').password_strength
-# => #<Zxcvbn::Score:0x007fcf3b563558 @entropy=29.782, @crack_time=46159.451, @crack_time_display="14 hours", @score=2, @match_sequence=[#<Zxcvbn::Match pattern="spatial", i=0, j=15, token="asdfghju7654rewq", graph="qwerty", turns=5, shifted_count=0, entropy=29.7820508329166>], @password="asdfghju7654rewq", @calc_time=0.005015>
+$ irb
+>> require 'zxcvbn'
+=> true
+>> Zxcvbn.test('@lfred2004', ['alfred'])
+=> #<Zxcvbn::Score:0x007fd467803098 @entropy=7.895, @crack_time=0.012, @crack_time_display="instant", @score=0, @match_sequence=[#<Zxcvbn::Match matched_word="alfred", token="@lfred", i=0, j=5, rank=1, pattern="dictionary", dictionary_name="user_inputs", l33t=true, sub={"@"=>"a"}, sub_display"@ -> a", base_entropy0.0, uppercase_entropy0.0, l33t_entropy1, entropy1.0, #<Zxcvbn::Match i=6, j=9, token="2004", pattern="year", entropy=6.894817763307944], @password="@lfred2004", @calc_time=0.003436>
+>> Zxcvbn.test('asdfghju7654rewq', ['alfred'])
+=> #<Zxcvbn::Score:0x007fd4689c1168 @entropy=29.782, @crack_time=46159.451, @crack_time_display="14 hours", @score=2, @match_sequence=[#<Zxcvbn::Match pattern="spatial", i=0, j=15, token="asdfghju7654rewq", graph="qwerty", turns=5, shifted_count=0, entropy=29.7820508329166>], password"asdfghju7654rewq", calc_time0.00526
 ```