README.md in xgb-0.6.0 vs README.md in xgb-0.7.0

@@ -1,17 +1,17 @@
 # XGBoost Ruby
 
 [XGBoost](https://github.com/dmlc/xgboost) - high performance gradient boosting - for Ruby
 
-[![Build Status](https://github.com/ankane/xgboost-ruby/workflows/build/badge.svg?branch=master)](https://github.com/ankane/xgboost-ruby/actions)
+[![Build Status](https://github.com/ruby-ml/xgboost-ruby/workflows/build/badge.svg?branch=master)](https://github.com/ruby-ml/xgboost-ruby/actions)
 
 ## Installation
 
 Add this line to your application’s Gemfile:
 
 ```ruby
-gem 'xgb'
+gem "xgb"
 ```
 
 On Mac, also install OpenMP:
 
 ```sh
@@ -171,24 +171,24 @@
 
 Thanks to the [xgboost](https://github.com/PairOnAir/xgboost-ruby) gem for showing how to use FFI.
 
 ## History
 
-View the [changelog](https://github.com/ankane/xgboost-ruby/blob/master/CHANGELOG.md)
+View the [changelog](https://github.com/ruby-ml/xgboost-ruby/blob/master/CHANGELOG.md)
 
 ## Contributing
 
 Everyone is encouraged to help improve this project. Here are a few ways you can help:
 
-- [Report bugs](https://github.com/ankane/xgboost-ruby/issues)
-- Fix bugs and [submit pull requests](https://github.com/ankane/xgboost-ruby/pulls)
+- [Report bugs](https://github.com/ruby-ml/xgboost-ruby/issues)
+- Fix bugs and [submit pull requests](https://github.com/ruby-ml/xgboost-ruby/pulls)
 - Write, clarify, or fix documentation
 - Suggest or add new features
 
 To get started with development:
 
 ```sh
-git clone https://github.com/ankane/xgboost-ruby.git
+git clone https://github.com/ruby-ml/xgboost-ruby.git
 cd xgboost-ruby
 bundle install
 bundle exec rake vendor:all
 bundle exec rake test
 ```