Merge pull request #204 from jeffnv/patch-1

update gemfile to 0.13.0.0

Author: zpao

README.md

@@ -17,7 +17,7 @@ As with all gem dependencies, we strongly recommend adding `react-rails` to your
 ```ruby
 # Gemfile
 
-gem 'react-rails', '~> 0.12.0.0'
+gem 'react-rails', '~> 0.13.0.0'
 ```