update README

update README: we are missing few compile time dependencies and a link
to the pvops kernel page on the wiki.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>

README

@@ -46,16 +46,22 @@ provided by your OS distributor:
     * Development install of curses (e.g., libncurses-dev)
     * Development install of openssl (e.g., openssl-dev)
     * Development install of x11 (e.g. xorg-x11-dev)
+    * Development install of uuid (e.g. uuid-dev)
     * bridge-utils package (/sbin/brctl)
     * iproute package (/sbin/ip)
     * hotplug or udev
     * GNU bison and GNU flex
+    * GNU gettext
+    * 16-bit x86 assembler, loader and compiler (dev86 rpm or bin86 & bcc debs)
+    * ACPI ASL compiler (iasl)
 
 Second, you need to acquire a suitable kernel for use in domain 0. If
 possible you should use a kernel provided by your OS distributor. If
 no suitable kernel is available from your OS distributor then refer to
 http://wiki.xen.org/xenwiki/XenDom0Kernels for suggestions for
 suitable kernels to use.
+If you are looking to compile a Dom0 kernel from source, please refer to
+http://wiki.xensource.com/xenwiki/XenParavirtOps.
 
 [NB. Unless noted otherwise, all the following steps should be
 performed with root privileges.]