Add more documentation

Related links: Parsed links
This only displays when a node is edited - rather awkward for a site where the nodes already exist. Is there a way to populate all nodes without individually editing each one. Also is it possible to exclude links that are img tags, or the hide tag from the table of contents module?

Related links: Manual links
Block do not display.

Related links: Discovered links
does display.

Any suggestions - a read me type set of explanations would help users if that is possible