diff --git a/README.md b/README.md
index 311f2d6..2db700f 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
 # goxml
 
+Forked from standard encoding/xml package v1.23.1
+
+When decode, add support for xml tag like 'xml:"prefix:name"' and treate prefix as namespace.
\ No newline at end of file