README.md in lightgbm-0.1.6 vs README.md in lightgbm-0.1.7

@@ -163,11 +163,11 @@
 - [Xgb](https://github.com/ankane/xgb) - XGBoost for Ruby
 - [Eps](https://github.com/ankane/eps) - Machine Learning for Ruby
 
 ## Credits
 
-Thanks to the [xgboost](https://github.com/PairOnAir/xgboost-ruby) gem for serving as an initial reference, and Selva Prabhakaran for the [test datasets](https://github.com/selva86/datasets).
+Thanks to the [xgboost](https://github.com/PairOnAir/xgboost-ruby) gem for serving as an initial reference.
 
 ## History
 
 View the [changelog](https://github.com/ankane/lightgbm/blob/master/CHANGELOG.md)
 
@@ -177,5 +177,15 @@
 
 - [Report bugs](https://github.com/ankane/lightgbm/issues)
 - Fix bugs and [submit pull requests](https://github.com/ankane/lightgbm/pulls)
 - Write, clarify, or fix documentation
 - Suggest or add new features
+
+To get started with development and testing:
+
+```sh
+git clone https://github.com/ankane/lightgbm.git
+cd lightgbm
+bundle install
+bundle exec rake vendor:all
+bundle exec rake test
+```