Fix YAML syntax so the parser renders the colors correctly

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets | #945

![yml syntax highlighting](https://f.cloud.github.com/assets/938375/321870/3c585946-9a16-11e2-8bea-b7f63f39badf.png)