README.md in service_config-0.0.2 vs README.md in service_config-0.1.0

@@ -1,6 +1,7 @@
 # ServiceConfig
+![Gem version](https://badge.fury.io/rb/service_config.png)
 
 Use this gem to expose environment variables to your code, with clear
 defaults and error handling for when the environment variables are
 unset.
 
@@ -23,9 +24,15 @@
       config.provides :soundcloud_server, 'http://api.soundcloud.com/'
     end
 
     provider.internal_server # => 'http://localhost:3000/'
     provider.soundcloud_server # => 'http://api.soundcloud.com/'
+    
+Configure mandatory options individually
+
+    ServiceConfig::Provider.new(:raise_if_nil => false) do |config|
+      config.provides :some_key, 'default', :raise_if_nil => true
+    end
 
 ## Contributing
 
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)