[Groff] Splitting groff(7)

[Bernd Warken]

IMHO the man page groff(7) is too long.  I propose to split off the
predefined language elements into man pages of their own:

groff_macros, groff_escapes, and groff_registers

The truncated groff(7) would still describe all of the groff language
concepts, but refer to the new man pages for the predefined elements.

This process could be accompanied with a major revision of these docs.
How far has the info file been processed?  Can we now remove the
language parts of the out-dated troff(1)?

Bernd Warken <address@hidden>