diff --git a/README.md b/README.md
index 421aaa18121c6032657570bd91f796b156d10006..dfa9a6d6594d6de0b97344d3a902956d46b73aa2 100644
--- a/README.md
+++ b/README.md
@@ -115,11 +115,17 @@ via the requested tar stream:
 curl -s http://localhost:5006/version
 ```
 
-## More hints    
+## More hints
+
+Canonicalization and prettifying:
+
+```bash
+./pretty_c14n.py before.xml after.xml
+```
 
 Pretty printing the xml code:
 
-```    
+```bash    
 cat foo.xml | tidy -xml --indent auto --indent-cdata yes --quiet yes \
   --wrap 0 --tab-size 2 - > bar.xml
 ```