README.md in disco-0.1.2 vs README.md in disco-0.1.3

@@ -242,23 +242,29 @@
 
 ```ruby
 [{user_id: 1, item_id: 1, rating: 5}, {user_id: 2, item_id: 1, rating: 3}]
 ```
 
+Or a Rover data frame
+
+```ruby
+Rover.read_csv("ratings.csv")
+```
+
 Or a Daru data frame
 
 ```ruby
 Daru::DataFrame.from_csv("ratings.csv")
 ```
 
-## Faster Similarity [experimental]
+## Faster Similarity
 
 If you have a large number of users/items, you can use an approximate nearest neighbors library like [NGT](https://github.com/ankane/ngt) to speed up item-based recommendations and similar users.
 
 Add this line to your application’s Gemfile:
 
 ```ruby
-gem 'ngt', '>= 0.2.3'
+gem 'ngt', '>= 0.3.0'
 ```
 
 Speed up item-based recommendations with:
 
 ```ruby