Update URL.
Xalan has moved (and 2.7.2 is out)

git-svn-id: https://svn.apache.org/repos/asf/httpd/docs-build/trunk@1830030 13f79535-47bb-0310-9956-ffa450edef68

lib/README

diff --git a/lib/README b/lib/README
index f6633b4..d7736d4 100644
--- a/lib/README
+++ b/lib/README
@@ -36,7 +36,7 @@
     (xalan_2_7_1.patch)
     patch adds a newline between xml declaration and doctype, even if
     indent = "no"
-    URL: http://xml.apache.org/xalan-j/
+    URL: http://xalan.apache.org/index.html
 
 xercesImpl.jar
 xml-apis.jar