graph option needs more documentation as suggested by current placeholder in text

In the file ``aGraphicsActivity.tex`` there is the following part of the pdf:

<img width="602" height="204" alt="Image" src="https://github.com/user-attachments/assets/0b84599a-7a9c-4e7a-8d59-a4a5fc8624eb" />

Note the ``WHERE?`` in the text as a placeholder for pending documentation.

This was found/reported as part of the Ximera Project Audit