move gem to development

Gemfile

@@ -44,6 +44,9 @@ group :development do
   gem 'listen', '~> 3.3'
   # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
   gem 'spring'
+  gem 'nokogiri', '~> 1.11', '>= 1.11.7'
+  gem 'httparty', '~> 0.18.1'
+  gem 'rubocop-rails', '~> 2.11', '>= 2.11.3'
 end
 
 group :test do
@@ -57,6 +60,3 @@ end
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 gem 'slim-rails', '~> 3.2'
-gem 'nokogiri', '~> 1.11', '>= 1.11.7'
-gem 'httparty', '~> 0.18.1'
-gem 'rubocop-rails', '~> 2.11', '>= 2.11.3'
\ No newline at end of file

lib/tasks/web_crawler.rake

 require 'open-uri'
-require 'csv'
-require 'zip'
 
 namespace :crawler do
   desc 'crawler from CareerBuilder'