Improve scenario for #absolute?

features/04_aruba_api/filesystem/check_if_path_is_absolute.feature

@@ -2,20 +2,6 @@ Feature: Check if path is absolute
 
   Use the `#absolute?`-method to check if a path is an absolute path.
 
-  ```ruby
-  require 'spec_helper'
-
-  RSpec.configure do |config|
-    config.include Aruba::Api
-  end
-
-  RSpec.describe 'Check if directory or file is absolute' do
-    let(:path) { '/path/to/file.txt' }
-
-    it { expect(absolute?(path)).to be true }
-  end
-  ```
-
   Background:
     Given I use a fixture named "cli-app"
 
@@ -24,10 +10,12 @@ Feature: Check if path is absolute
     """ruby
     require 'spec_helper'
 
-    RSpec.describe 'Check if directory or file is absolute', :type => :aruba do
+    RSpec.describe 'the absolute? method', :type => :aruba do
       let(:path) { '/path/to/file.txt' }
 
-      it { expect(absolute?(path)).to be true }
+      it "returns true for an absolute path" do
+        expect(absolute?(path)).to be true
+      end
     end
     """
     When I run `rspec`