Many games fixbox use <pre> tag with list, mostly to show what needs to be changed in config etc. This doesn't work with numbered list as it breaks and even with regular list style breaks as <pre> content is bit more to left than list itself.
Most of the time I see it's done by manually faking formatting and putting 1. 2. etc. instead of # and using spaces and enters to make it look OK but makes it much harder to actually modify and read as wikitext afterwards.
I don't think it's possible to make changes to MediaWiki code and make <pre> work with lists. Only legit way of doing this as far as I know is to use HTML and <ol> <li> tags.
Is there other way of doing this? If not then that HTML variation should be included in example article.