Take the rule: add the section "Links to Wiki" of documentation pages on the bottom with links to related pages on the wiki.
Must be an additional rule: all good articles on Wiki should at least once to be used on the site documentation in the links section. It is possible to publish a link to several pages of documentation.
This idea came after several times I suddenly find a very good article on Wiki, even after all there looked.
For beginners it will be very useful.