Gemfile in arel_toolkit-0.3.0 vs Gemfile in arel_toolkit-0.4.0

@@ -1,4 +1,9 @@
 source 'https://rubygems.org'
 
+git_source(:github) do |repo_name|
+  repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?('/')
+  "https://github.com/#{repo_name}.git"
+end
+
 # Specify your gem's dependencies in arel_toolkit.gemspec
 gemspec