README.md in monte_carlo-0.0.1 vs README.md in monte_carlo-0.0.2

@@ -22,9 +22,10 @@
 
 Each experiment conatins:
 - `times`: the number of sample to create (defaults to 10,000)
 - `sample_method`: the method with which to generate a sample each iteration
 - `computation`: an optional coputation method to run on each sample to obtain a result
+- `before_each` & `after_each`: optional methods to run before and after each iteration
 
 For example;
 
 ```ruby
 # Create an experiment with an optional number of times