diff --git a/README.md b/README.md
index e5dffe6..5a8f344 100644
--- a/README.md
+++ b/README.md
@@ -20,14 +20,13 @@ Following [Switch Dreams's](https://www.switchdreams.com.br/]) coding practices,
 
 - [Automatic rest api crud generation](#example)
 - [Nested Resource](#nested-resource)
-- [Modular error handler](#modular-error-handler)
+- :goal_net: [Modular error handler](#modular-error-handler)
+- :memo: [Automated documentation](#specsdocs)
 - [Resource ordering](#ordering)
 - [Resource filter](#filtering)
 
 ## Next Features
 
-- Generate nested resource end-points 🚧
-- Automated documentation 🚧 https://github.com/SwitchDreams/rest-api-generator/issues/12
 - Serialization https://github.com/SwitchDreams/rest-api-generator/issues/14
   https://github.com/SwitchDreams/rest-api-generator/issues/11
 - Pagination https://github.com/SwitchDreams/rest-api-generator/issues/15
@@ -116,6 +115,7 @@ For a better experience you can override some methods from the
 | father | Generate nested resource                                     | nil     | --father Users  |
 | scope  | Scope the resource for other route or namespace organization | nil     | --scope Api::V1 |
 | eject  | Eject the controller to high customization                   | false   | true            |
+| spec   | Choose the spec format. Current options: "rspec" or "rswag"  | rspec   | --spec rswag    |
 
 #### Scope
 
@@ -225,6 +225,24 @@ class CarsController < ApplicationController
 end
 ```
 
+#### Specs/Docs
+
+The default generated spec for this gem is using plain rspec, but you can choose rswag, for scaffold you specs and docs
+at the same time:
+
+For this you need to setup https://github.com/rswag/rswag and you the following flag when generating resources.
+
+```shell
+rails g rest_api_generator:resource Car name:string color:string --spec rswag
+```
+
+This spec options work as generators too, so you can call them individually:
+
+```shell
+# rest_api_generator:spec:rswag or rest_api_generator:spec:rspec
+rails g rest_api_generator:spec:rswag Car name:string color:string
+```
+
 ### Resource Features
 
 #### Modular Error Handler
diff --git a/spec/lib/generators/rest_api_generator/resource_generator_spec.rb b/spec/lib/generators/rest_api_generator/resource_generator_spec.rb
index 93bc70b..0dd2cda 100644
--- a/spec/lib/generators/rest_api_generator/resource_generator_spec.rb
+++ b/spec/lib/generators/rest_api_generator/resource_generator_spec.rb
@@ -100,4 +100,16 @@
       it { is_expected.to contain(/module Api::Country/) }
     end
   end
+
+  context "with custom spec" do
+    before do
+      run_generator(["user", "--spec", "rswag"])
+    end
+
+    describe "rswag file" do
+      subject { file("spec/requests/users_spec.rb") }
+
+      it { is_expected.to exist }
+    end
+  end
 end