README.md in guard-rspec-2.3.3 vs README.md in guard-rspec-2.4.0

@@ -99,12 +99,17 @@
 ``` ruby
 guard 'rspec', :turnip => true do
   # ...
 end
 ```
+[Spring](https://github.com/jonleighton/spring) is supported (Ruby 1.9.X / Rails 3.2+ only), but you must enable it:
+``` ruby
+guard 'rspec', :spring => true do
+  # ...
+end
+```
 
-
 Former `:color`, `:drb`, `:fail_fast` and `:formatter` options are deprecated and have no effect anymore.
 
 ### List of available options:
 
 ``` ruby
@@ -116,10 +121,11 @@
 :all_after_pass => false     # run all specs after changed specs pass, default: true
 :all_on_start => false       # run all the specs at startup, default: true
 :keep_failed => false        # keep failed specs until they pass, default: true
 :run_all => { :cli => "-p" } # cli arguments to use when running all specs, default: same as :cli
 :spec_paths => ["spec"]      # specify an array of paths that contain spec files
+:spring => true              # enable spring support; default: false
 :turnip => true              # enable turnip support; default: false
 :zeus => true                # enable zeus support; default: false
 :focus_on_failed => false    # focus on the first 10 failed specs first, rerun till they pass
 ```
 
@@ -199,5 +205,11 @@
 
 Author
 ------
 
 [Thibaud Guillaume-Gentil](https://github.com/thibaudgg)
+
+Contributors
+------------
+
+[https://github.com/guard/guard-rspec/contributors](https://github.com/guard/guard-rspec/contributors)
+