Rakefile in piet-0.2.0 vs Rakefile in piet-0.2.1

@@ -1,2 +1,8 @@
 require 'bundler'
 Bundler::GemHelper.install_tasks
+
+require 'rspec/core'
+require 'rspec/core/rake_task'
+RSpec::Core::RakeTask.new(:spec)
+
+task default: :spec