README.md in acfs-0.26.0.1.b243 vs README.md in acfs-0.27.0

@@ -145,14 +145,14 @@
 ```ruby
 class Single < Acfs::SingletonResource
   service UserService # Associate `Single` model with `UserService`.
 
   # Define model attributes and types as with regular resources
-  
+
   attribute :name, :string, default: 'Anonymous'
   attribute :age, :integer
-  
+
 end
 ```
 
 The following code explains the routing for singleton resource requests:
 
@@ -215,12 +215,17 @@
 ## Stubbing
 
 You can stub resources in applications using an Acfs service client:
 
 ```ruby
-# Enable stubs in spec helper
-Acfs::Stub.enable
+# spec_helper.rb
 
+# This will enable stabs before each spec and clear internal state
+# after each spec.
+require 'acfs/rspec'
+```
+
+```ruby
 before do
   @stub = Acfs::Stub.resource MyUser, :read, with: { id: 1 }, return: { id: 1, name: 'John Smith', age: 32 }
   Acfs::Stub.resource MyUser, :read, with: { id: 2 }, raise: :not_found
   Acfs::Stub.resource Session, :create, with: { ident: '[e-mail]', password: 's3cr3t' }, return: { id: 'longhash', user: 1 }
   Acfs::Stub.resource MyUser, :update, with: lambda { |op| op.data.include? :my_var }, raise: 400