# the pages are sorted thanks to the numbers in front
for doc in $(find docs -type f | sort -n );
do grep '^#' $doc | while read title;
   do
     # The text is the title, with an indentation level depending on the depth, with square brackets
     linkText=$(echo $title | sed -E -e 's/#{4}(.*)/      + [\1]/g' -e 's/#{3}(.*)/    + [\1]/g' -e 's/#{2}(.*)/  * [\1]/g' -e 's/#{1}(.*)/- [\1]/g')
     # The anchor is the title, all lowercase, without special char, with '-' instead of space
     anchor=$(echo $title | tr '[A-Z]' '[a-z]' |   sed -E -e 's/#+ +//g' -e 's/ /-/g');
     echo "$linkText($doc#$anchor)";
   done;
done