Let me add that, before going HTML, we had RTF format documentation,
which turned out to be a major pain. First, it's a Microsoft proprietary
format, secondly, it's NOT compatible across platforms.  In particular,
NeXT (Write Now or Edit), Mac (MS Word), and Windows (MS Word) were
not able to exchange the files as they should have been.  Last, but not
least, rtf does not really exist on UNIX stations.