NEWS: mention `extras' directory

[Fergus Henderson]

NEWS:
	Mention the stuff in the `extras' directory.

Index: NEWS
===================================================================
RCS file: /home/staff/zs/imp/mercury/NEWS,v
retrieving revision 1.70
diff -u -r1.70 NEWS
--- NEWS	1997/08/01 06:03:56	1.70
+++ NEWS	1997/08/09 02:23:19
@@ -262,3 +262,13 @@
 	  particular element from the old bt_array.  The extra argument is
 	  the element to use to fill these slots instead.
 
+* There is a new `extras' directory in the distribution that contains
+  some additional libraries.  These provide support for the following
+  application areas:
+
+  - graphics using Tk and OpenGL
+
+  - arithmetic on complex and imaginary numbers
+
+  - processing HTML forms using the CGI interface.
+
-- 
Fergus Henderson <fjh at cs.mu.oz.au>   |  "I have always known that the pursuit
WWW: <http://www.cs.mu.oz.au/~fjh>   |  of excellence is a lethal habit"
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