[msitools] update README

[Marc-Andre Lureau <malureau src gnome org>]

commit 5574ae776690ef56125081fd7be0c024d5a2c05b
Author: Paolo Bonzini <pbonzini redhat com>
Date:   Thu Jan 17 15:49:44 2013 +0100

    update README

 README |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/README b/README
index 8e1320b..4cde9a4 100644
--- a/README
+++ b/README
@@ -16,6 +16,12 @@ Provided tools include:
   from an XML document, and tries to share the same syntax as the WiX
   toolset, http://wixtoolset.org/
 
+- wixl-heat, a tool that builds XML fragments from a list of files
+  and directories.
+
+Right now, msitools does not work under Windows.  It is planned that
+it will self-host.
+
 While in a very early stage, it is already usable.
 
 msitools uses libgsf in order to read OLE Structured Storage files