irssi-icb patch: updating README

Hi,

Here's a patch to updated the README for the svn irssi-icb module.
Autoloading an icb server won't work, unless you load the icb module
beforehand.

Index: README
===================================================================
--- README	(revision 3757)
+++ README	(working copy)
@@ -14,6 +14,10 @@
 
  icbnet = { type = "ICB"; };
 
+You'll also need to add to your startup file:
+
+ /LOAD icb
+
 and then:
 
  /SERVER ADD -auto -icbnet icbnet default.icb.net