README.md in xgb-0.1.1 vs README.md in xgb-0.1.2

@@ -16,11 +16,11 @@
 gem 'xgb'
 ```
 
 ## Getting Started
 
-This library follows the [Core Data Structure, Learning and Scikit-Learn APIs](https://xgboost.readthedocs.io/en/latest/python/python_api.html) of the Python library. Some methods and options are missing at the moment. PRs welcome!
+This library follows the [Python API](https://xgboost.readthedocs.io/en/latest/python/python_api.html). Some methods and options are missing at the moment. PRs welcome!
 
 ## Learning API
 
 Train a model
 
@@ -31,11 +31,12 @@
 ```
 
 Predict
 
 ```ruby
-booster.predict(x_test)
+dtest = Xgb::DMatrix.new(x_test)
+booster.predict(dtest)
 ```
 
 Save the model to a file
 
 ```ruby
@@ -106,9 +107,15 @@
 
 Get the importance of features
 
 ```ruby
 model.feature_importances
+```
+
+Early stopping
+
+```ruby
+model.fit(x, y, eval_set: [[x_test, y_test]], early_stopping_rounds: 5)
 ```
 
 ## Data
 
 Data can be an array of arrays