Getting Started examples using deprecated [Return] setting

The "Getting Started" section of the Robot Framework website contains usage of the deprecated setting **[Return]** in the "Simple Example 2", "Advanced Example" and "Variables" example.

<img width="1107" height="636" alt="Image" src="https://github.com/user-attachments/assets/39e231a3-87f2-47ae-9b36-b14e5eedf1d6" />