Add full deps list to build doc

[BDoignies]

PR Description

Add a list of options to build documentation. Should I add an entry to changelog?

Checklist

• [N.A] Unit-test of your feature with Catch.
• Doxygen documentation of the code completed (classes, methods, types, members...)
• [N.A] Documentation module page added or updated.
• [N.A] New entry in the ChangeLog.md added.
• [N.A] No warning raised in Debug mode.
• [N.A] All continuous integration tests pass (Github Actions)

[dcoeurjo]

excellent, thx