README.md in arugula-0.3.0 vs README.md in arugula-0.4.0

@@ -23,9 +23,12 @@
 
 ```ruby
 regexp = Arugula.new('[A-Z][a-z]+')
 regexp.match?('ahoy! my name is Samuel') # => 17
 regexp.match?('foobar') # => null
+
+regexp = Arugula.new('Hello ([a-z]+)!')
+regexp.match('Hello world!') # => #<MatchData "Hello world!" 1:"world">
 ```
 
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies.