rails_edge.gemfile in erd-0.6.0

- old
+ new

@@ -2,6 +2,7 @@
 
 source 'https://rubygems.org'
 
 gemspec :path => '../'
 
-gem 'rails', github: 'rails/rails'
+gem 'rails', git: 'https://github.com/rails/rails'
+gem 'puma'