Added w-x0 replacements with callouts

These have been tested for the whole rmd file and work!

Merge branch 'main' of ssh://gitlab.lcsb.uni.lu:8022/aurelien.ginolhac/quartoteachting_template

# Conflicts:
#	xaringan2reveal.R

Added replace title slide,
Added replace slide break,
Added suggestions for .pull-left and .pull-right

WIP
Parser code to replace specific things such as boxes and images that are still in progress

Working
Parser code which is already working