From HTML - IETF draft
1.2 of 1993
element link - this document links to that one
- Attribute
rel="X"
- The link to that document is of type X
- E.g.
<a href="gloss"
rel="glossary">xxx</a.>
- xxx is linked to something that is a glossary.
rel, rev are literal text values, for documents
or hypertext
