Readme: add DMS removal notice (#877)

* Readme: add DMS removal notice

* update readme text

README.md

@@ -1,3 +1,8 @@
+### IMPORTANT NOTICE
+As [announced](https://www.bitfinex.com/posts/1072/), on November 6, 2024 Bitfinex Honey will no longer support the 'dead-man switch' or 'DMS' feature. This will apply to all versions of Bitfinex Honey. Your version of Bitfinex Honey will be affected. 
+This change will mean that the orders you created using any version of Bitfinex Honey will continue running even if you turn off the machine running Bitfinex Honey. Previously, the DMS feature would have stopped those orders when you disconnected. If you do not want those orders to continue, you can close open orders before you disconnect Bitfinex Honey, or close them manually by logging into Bitfinex. 
+Please plan accordingly for this change.
+
 # Bitfinex Honey UI
 
 - Creates HF services as background processes