Update broken web addresses in arch directory.

The patch below updates broken web addresses in the arch directory.

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Reviewed-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/arch/h8300/README b/arch/h8300/README
index 2fd6f6d..637f5a0 100644
--- a/arch/h8300/README
+++ b/arch/h8300/README
@@ -18,6 +18,7 @@
 
 4.EDOSK2674
   see http://www.eu.renesas.com/products/mpumcu/tool/edk/support/edosk2674.html
+      http://www.uclinux.org/pub/uClinux/ports/h8/HITACHI-EDOSK2674-HOWTO
       http://www.azpower.com/H8-uClinux/
 
 * Toolchain Version