```ruby
# -*- encoding: utf-8 -*-
require File.expand_path('../lib/croudia/version', __FILE__)

Gem::Specification.new do |gem|
  gem.authors       = ['wktk']
  gem.email         = ['wktk@wktk.in']
  gem.description   = 'A Mechanize-based scraper for Croudia'
  gem.summary       = 'Croudia scraper'
  gem.homepage      = 'https://github.com/wktk/croudia-gem'

  gem.files         = `git ls-files`.split($\)
  gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
  gem.name          = 'croudia'
  gem.require_paths = ['lib']
  gem.version       = Croudia::VERSION

  gem.add_dependency 'mechanize', '~> 2.5.1'
  gem.add_development_dependency 'rspec', '~> 2.10.1'
  gem.add_development_dependency 'webmock', '~> 1.8.7'
end
```

Add rake & rdoc to development dependency
user
```ruby
# -*- encoding: utf-8 -*-
require File.expand_path('../lib/croudia/version', __FILE__)

Gem::Specification.new do |gem|
  gem.authors       = ['wktk']
  gem.email         = ['wktk@wktk.in']
  gem.description   = 'A Mechanize-based scraper for Croudia'
  gem.summary       = 'Croudia scraper'
  gem.homepage      = 'https://github.com/wktk/croudia-gem'

  gem.files         = `git ls-files`.split($\)
  gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
  gem.name          = 'croudia'
  gem.require_paths = ['lib']
  gem.version       = Croudia::VERSION

  gem.add_dependency 'mechanize', '~> 2.5.1'
  gem.add_development_dependency 'rake', '~> 0.9.2.2'
  gem.add_development_dependency 'rdoc', '~> 3.11'
  gem.add_development_dependency 'rspec', '~> 2.10.1'
  gem.add_development_dependency 'webmock', '~> 1.8.7'
end
```
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