updated CHANGELOG.md

Author: Justin Oca

CHANGELOG.md

@@ -53,6 +53,12 @@ All notable changes to this project will be documented in this file.
     * #### Removed
 * ### `nifgen` (NI-FGEN)
     * #### Added
+        * `started_event_pulse_width` - [#1873](https://github.com/ni/nimi-python/issues/1873)
+        * `done_event_pulse_width` - [#1873](https://github.com/ni/nimi-python/issues/1873)
+        * `marker_event_pulse_width` - [#1873](https://github.com/ni/nimi-python/issues/1873)
+        * `started_event_pulse_width_units` - [#1873](https://github.com/ni/nimi-python/issues/1873)
+        * `done_event_pulse_width_units` - [#1873](https://github.com/ni/nimi-python/issues/1873)
+        * `marker_event_pulse_width_units` - [#1873](https://github.com/ni/nimi-python/issues/1873)
     * #### Changed
     * #### Removed
 * ### `nimodinst` (NI-ModInst)