Add COLORS and COLOR_PAIRS.

lib/libcurses/PSD.doc/intro.2

@@ -1,4 +1,4 @@
-.\"	$NetBSD: intro.2,v 1.5 1999/01/26 22:45:02 tron Exp $
+.\"	$NetBSD: intro.2,v 1.6 2000/04/12 21:49:50 jdc Exp $
 .\"
 .\" Copyright (c) 1980, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -66,6 +66,12 @@ T}
 int	COLS	T{
 number of columns on the terminal
 T}
+int	COLORS	T{
+number of colors on the terminal
+T}
+int	COLOR_PAIRS	T{
+number of color pairs on the terminal
+T}
 int	ERR	T{
 error flag returned by routines on a fail.
 T}