Rakefile in keep_up-0.4.0 vs Rakefile in keep_up-0.5.0

@@ -1,8 +1,10 @@
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
 require 'cucumber/rake/task'
+require 'rubocop/rake_task'
 
 RSpec::Core::RakeTask.new(:spec)
 Cucumber::Rake::Task.new(:features)
+RuboCop::RakeTask.new
 
-task default: [:spec, :features]
+task default: [:spec, :features, :rubocop]