Fix Gemfile indentation

Gemfile

@@ -20,7 +20,7 @@ gem 'kramdown', '~> 2.4'                                              # Yet-anot
 gem 'mongoid', '~> 8.1', '>= 8.1.3'                                   # The Official Ruby Object Mapper for MongoDB
 gem 'omniauth', '~> 2.1', '>= 2.1.1'                                  # Flexible authentication system utilizing Rack middleware
 gem 'puma', '>= 5.0'                                                  # Use the Puma web server [https://github.com/puma/puma]
-gem 'rails', '~> 7.1'                                               # Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
+gem 'rails', '~> 7.1'                                                 # Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
 gem 'redcarpet', '~> 3.6'                                             # The safe Markdown parser, reloaded
 gem 'redis', '>= 4.0.1'                                               # Use Redis adapter to run Action Cable in production
 gem 'responders', '~> 3.1'                                            # A set of Rails responders to dry up your application