Gemfile in m2m-0.2.0 vs Gemfile in m2m-0.2.1

@@ -1,11 +1,10 @@
-source "https://ruby.taobao.org/"
-
 gem 'nokogiri', '1.6.7'
 gem 'mustache', '1.0.3'
 gem 'kramdown', '1.10.0'
 gem 'commander', '4.4.0'
 gem 'mail', '2.6.4'
 gem 'webrick', '1.3.1'
 gem 'aescrypt', '1.0.0'
+gem 'rdoc', '4.2.2'
 
 gemspec
\ No newline at end of file