README.md in hightop-0.2.2 vs README.md in hightop-0.2.3

@@ -116,5 +116,14 @@
 
 - [Report bugs](https://github.com/ankane/hightop/issues)
 - Fix bugs and [submit pull requests](https://github.com/ankane/hightop/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/hightop.git
+cd hightop
+bundle install
+bundle exec rake test
+```