Gemfile in libsvmloader-0.2.1 vs Gemfile in libsvmloader-0.3.0

@@ -2,5 +2,13 @@
 
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in libsvmloader.gemspec
 gemspec
+
+gem 'bundler', '~> 2.0'
+gem 'rake', '~> 13.0'
+gem 'rspec', '~> 3.0'
+gem 'simplecov', '~> 0.19'
+gem 'simplecov-lcov', '~> 0.8'
+gem 'rbs', '~> 1.2'
+gem 'steep', '~> 0.44'