Appraisals in g2_command-2.2.0 vs Appraisals in g2_command-2.3.0

@@ -1,13 +1,13 @@
-appraise 'rails-5.1' do
+appraise 'rails_5.1' do
   gem 'rails', '5.1.7'
   gem 'sprockets', '~> 3'
 end
 
-appraise 'rails-5.2' do
+appraise 'rails_5.2' do
   gem 'rails', '5.2.4'
   gem 'sprockets', '~> 3'
 end
 
-appraise 'rails-6.0' do
+appraise 'rails_6.0' do
   gem 'rails', '6.0.3'
 end