Update readme

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop-pdf-images/trunk@1877374 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/README b/README
index ee5c31e..704fd8c 100644
--- a/README
+++ b/README
@@ -76,7 +76,7 @@
 
 This plug-in has the following requirements:
 - Apache PDFBox 2.0 or later
-- Apache XML Graphics Commons 2.5 or later (for the image converter)
+- Apache XML Graphics Commons 2.4 or later (for the image converter)
 - Apache XML FOP 2.5 or later (for the FOP functionality)
 - Java 1.7 or later
 
@@ -162,6 +162,7 @@
 Changes:
 FOP-2904: Handle object for boundingbox
 FOP-2922: Syntax error after writing content stream
+FOP-2933: PDF to PDF checkbox missing
 
 Version 2.4
 =========================