Tags missing from HTML output
This Issue presents a simple initial exercise, and as a side-effect it's intended for getting up to speed on how the Tutorial is being generated.
If it will help to have more explanation of what is actually going on to generate the manual, then please say the word and I'll provide more description here in the comments.
As a first exercise, please load and generate the tutorial as follows:
GDL-USER> (ql:quickload :tutorial)
GDL-USER> (gendl-doc::make-html-and-css)
Notice all the warnings various markup tags "not recognized."
Find where these warnings are coming from and try to add the missing markup tags.