Update doc build instructions to ensure sufficient latex version
The instructions for setting up the environment for building the docs ( https://gitlab.com/inkscape/inkscape-docs/manuals/-/tree/master/Inkscape-Beginners-Guide ) can fail due to out of date latex version, and should be updated to clarify minimum system requirements.
Original issue description below:
The current sphinx build system fails when certain unicode characters are used, e.g.,
Ș, which works fine in HTML, but fails to display in the PDF via LaTeX build, showing the error:
! Package inputenc Error: Unicode char \u8:Ș not set up for use with LaTeX.
Supposedly, this issue has been resolved in 2015: https://tex.stackexchange.com/questions/20182/how-to-use-unicode-characters-with-sphinx-rst-documents-and-properly-generate-pd
I've found some workarounds (on the LaTeX side) but using LaTeX macros instead of unicode means that the characters only show up in the LaTeX version, and not the HTML build.