update libxosd source link

INSTALL

@@ -64,7 +64,7 @@ need some additional programs or libraries installed:
   http://www.intra2net.com/de/produkte/opensource/ftdi/ and
   http://libusb.sourceforge.net/
 
-* XOSD for use with the 'xosd' driver, see http://www.ignavus.net/software.html ,
+* XOSD for use with the 'xosd' driver, see http://sourceforge.net/projects/libxosd ,
   as well as an x11 implementation, more precisely libX11 and libXext.
 
 

docs/lcdproc-user/drivers/xosd.docbook

@@ -1,9 +1,15 @@
 <sect1 id="xosd-howto">
 <title>The xosd Driver</title>
 
+
 <para>
-This section talks about using LCDproc with LCD displays that use the
-xosd chipset.
+This section talks about using LCDproc with libxosd.
+</para>
+
+<para>
+<ulink url="http://sourceforge.net/projects/libxosd">libxosd</ulink> is a system
+that displays text on top of your X-Windows screen, much like the
+on-screen display (OSD) used by most modern televisions and video-players.
 </para>
 
 <!-- ## OnScreen Display using libxosd ## -->