Update CHANGELOG.md

Signed-off-by: Jun Ying Tan <9677893+tjying95@users.noreply.github.com>

Author: tjying95

CHANGELOG.md

@@ -31,6 +31,7 @@ All notable changes to this project will be documented in this file.
 
 * ### Major Changes
     * Added support for mioDAQ configurable digital voltage.
+    * Added support for mioDAQ ID Pin.
 
 * ### Known Issues
     * ...