updated the README for rails 4/3 support stats

README.rdoc

@@ -9,7 +9,7 @@ Main uses would be for Users to follow other Users or for Users to follow Books,
 
 == Installation
 
-=== The master branch supports rails 3
+=== The master branch supports Rails 4
 
 Add the gem to the gemfile:
   gem "acts_as_follower"
@@ -19,6 +19,22 @@ Run the generator:
 
 This will generate a migration file as well as a model called Follow.
 
+=== Rails 3.x support
+
+Rails 3 is supports in the rails_3 branch https://github.com/tcocca/acts_as_follower/tree/rails_3
+
+Add the gem to the gemfile:
+  gem "acts_as_follower", '~> 1'
+
+or install from the branch
+
+  gem "acts_as_follower", :git => 'git://github.com/tcocca/acts_as_follower.git', :branch => 'rails_3'
+
+Run the generator:
+  rails generate acts_as_follower
+
+This will generate a migration file as well as a model called Follow.
+
 === Rails 2.3.x support
 
 Rails 2.3.x is supported in the rails_2.3.x branch http://github.com/tcocca/acts_as_follower/tree/rails_2.3.x but must be installed as a plugin.

acts_as_follower.gemspec

@@ -22,5 +22,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency "shoulda_create"
   s.add_development_dependency "shoulda", "3.5.0"
   s.add_development_dependency "factory_girl", "4.2.0"
-  s.add_development_dependency "rails", "~>4.0.0"
+  s.add_development_dependency "rails", "~> 4.0.0"
 end