Update Gemfile

Author: xuleixie

Gemfile

@@ -17,6 +17,7 @@ gem "github-pages", "~> 232", group: :jekyll_plugins
 # If you have any plugins, put them here!
 group :jekyll_plugins do
   gem "jekyll-feed", "~> 0.12"
+  gem 'jekyll-sass-converter', '~> 1.5.2'
 end
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem