README.md in keen-0.8.1 vs README.md in keen-0.8.2

@@ -81,10 +81,12 @@
 
 Next, run an instance of EventMachine. If you're using an EventMachine-based web server like
 thin or goliath you're already doing this. Otherwise, you'll need to start an EventMachine loop manually as follows:
 
 ```ruby
+require 'em-http-request'
+
 Thread.new { EventMachine.run }
 ```
 
 The best place for this is in an initializer, or anywhere that runs when your app boots up.
 Here's a useful blog article that explains more about this approach - [EventMachine and Passenger](http://railstips.org/blog/archives/2011/05/04/eventmachine-and-passenger/).
@@ -114,10 +116,12 @@
 Keen.count("purchases") # => 100
 Keen.sum("purchases", :target_property => "price")  # => 10000
 Keen.minimum("purchases", :target_property => "price")  # => 20
 Keen.maximum("purchases", :target_property => "price")  # => 100
 Keen.average("purchases", :target_property => "price")  # => 60
+Keen.median("purchases", :target_property => "price")  # => 60
+Keen.percentile("purchases", :target_property => "price", :percentile => 90)  # => 100
 
 Keen.sum("purchases", :target_property => "price", :group_by => "item.id")  # => [{ "item.id": 123, "result": 240 }, { ... }]
 
 Keen.count_unique("purchases", :target_property => "username")  # => 3
 Keen.select_unique("purchases", :target_property => "username")  # => ["Bob", "Linda", "Travis"]
@@ -280,9 +284,13 @@
 
 If you write a script that uses `publish_async`, you need to keep the script alive long enough for the call(s) to complete.
 EventMachine itself won't do this because it runs in a different thread. Here's an [example gist](https://gist.github.com/dzello/7472823) that shows how to exit the process after the event has been recorded.
 
 ### Changelog
+
+##### 0.8.2
++ Add support for `median` and `percentile` analysis
++ Support arrays for extraction `property_names` option
 
 ##### 0.8.1
 + Add support for asynchronous batch publishing
 
 ##### 0.8.0