Add note about setting

Author: joyceerhl

release-notes/v1_95.md

@@ -127,6 +127,10 @@ This month, we also added a command to let you skip this behavior on a per-reque
 
 ![The list of available "send" commands in the chat view](<images/1_95/chat-send-commands.png>)
 
+You can also disable automatic participant detection entirely with the following setting.
+
+**Setting**: `setting(chat.experimental.detectParticipant.enabled)`
+
 ## Workbench
 
 ### Multiple GitHub accounts