Update README.md

Author: wumpz

README.md

@@ -57,6 +57,7 @@ Also I would like to know about needed examples or documentation stuff.
 
 ## Extensions in the latest SNAPSHOT version 4.1
 
+* support for **with** (ctl) for **delete**, **update** and **merge**
 * introduce a max depth to allow parsing complex expression lists without performance loss (thx to @manticore-projects)
 * allow all functions to have complex expressions as parameters (thx to @manticore-projects)
 ** API change FunctionWithCondParams production removed