The manual contains outdated pandoc instructions

[camoz]

The manual linked in the README.md gives an example invocation of pandoc in section 2.5 Pandoc:

pandoc -t beamer --latex-engine=xelatex -V theme:metropolis -o output.pdf input.md

With pandoc 3.0.1, this returns the error:

--latex-engine has been removed.  Use --pdf-engine instead.
Try pandoc --help for more information.