V1 Docs: Add CSS Styling instructions to PDF Output Section

[Erin-Cecele]

Before proceeding, check to make sure there isn’t an existing issue for your suggestion or a similar one.

• [X] I have searched the existing issues and determined this is new suggestion.

Idea being proposed

@geealbers As discussed, we are going to add to the Modifying and Styling the PDF section of Output Your Project to provide more thorough instructions addressing questions from the community like GitHub Issue #801 from @zsofiaj.

What contribution category does your proposal fall under?

Write/propose new section

Supporting Information

No response

[Erin-Cecele]

This has been achieved with PR #692.