Update Redcarpet to version 3.2.2

Gemfile

@@ -27,7 +27,7 @@ gem 'uglifier', '>= 1.3.0', require: false
 
 group :doc do
   gem 'sdoc', '~> 0.4.0'
-  gem 'redcarpet', '~> 3.1.2', platforms: :ruby
+  gem 'redcarpet', '~> 3.2.2', platforms: :ruby
   gem 'w3c_validators'
   gem 'kindlerb'
 end

guides/rails_guides.rb

@@ -24,11 +24,11 @@ def bundler?
   require 'redcarpet'
 rescue LoadError
   # This can happen if doc:guides is executed in an application.
-  $stderr.puts('Generating guides requires Redcarpet 3.1.2+.')
+  $stderr.puts('Generating guides requires Redcarpet 3.2.2+.')
   $stderr.puts(<<ERROR) if bundler?
 Please add
 
-  gem 'redcarpet', '~> 3.1.2'
+  gem 'redcarpet', '~> 3.2.2'
 
 to the Gemfile, run