inlined the test.yml contents as they are no longer part of the CMF SE 1.1+

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 1.1+
| Fixed tickets | https://github.com/symfony-cmf/standard-edition/issues/14
"For example, to add a page called "Testing", creating a file called `app/Resources/data/pages/test.yml` with the following contents:"