TeX: do not remove markdown escapings like `el`{=markdown}
TeX: do not remove markdown escapings like `el`{=markdown}

this is used to prevent Pandoc from over-escaping when preprocessing
Markdown content before feeding it to Hugo ... now, when using Pandoc
to create Beamer slides from the same content, we do not want to
discard this escaped content but to use it also in the slides ...

this can cause problems, as shortcodes and Pandoc might be incompatible

cagix/pandoc-lecture