Add info about changes in hf_mf_ultimatecard.lua (set/get maximum rea…

…d/write block) to Changelog

CHANGELOG.md

@@ -3,6 +3,7 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+- Add option to set and get maximum read/write block number using `hf_mf_ultimatecard` script (@piotrva)
 - Added special iclass legacy config cards in `hf iclass configcard` (@antiklesys)
 - Added simulation function to `hf iclass legrec` (@antiklesys)