update debian packages list

diff --git a/README b/README
index 87bf3c6..24c577b 100644 (file)
--- a/README
+++ b/README
@@ -32,7 +32,7 @@ sudo apt-get install \
 you may need one of the following packages for development:
 
 sudo apt-get install \
-       make perl-doc
+       make perl-doc libxml2-utils
 
 and may enable mod_apreq