Cloudfile.erb in shelly-0.4.21

- old
+ new

@@ -1,6 +1,6 @@
 <%= @code_name %>:
-  ruby_version: <%= @ruby_version %> # 2.0.0, jruby, 1.9.3, 1.9.2 or ree-1.8.7
+  ruby_version: <%= @ruby_version %> # 2.1.0, 2.0.0, jruby, rbx, 1.9.3, 1.9.2 or ree-1.8.7
   environment: <%= @environment %> # RAILS_ENV
   monitoring_email: <%= @email %>
   domains:
     <%- @domains.each do |domain| -%>
     <%- if domain.start_with?("*") -%>