add jennuine to PMC list

Signed-off-by: Jenn Nguyen <jennuine@intrinsic.ai>

Author: jennuine

governance.md

@@ -59,6 +59,7 @@ The Gazebo PMC currently consists of the following individuals:
 | Steve Peters         | [Intrinsic](https://www.intrinsic.ai/)         | [scpeters](https://github.com/scpeters)         | Member         | PST (UTC-8)/PDT (UTC-7) |
 | Jose Luis Rivero     | [Honu Robotics](https://www.honurobotics.com/) | [jrivero](https://github.com/j-rivero)          | Member         | CET (UTC+2)/CET (UTC+1) |
 | Addisu Z. Taddese    | [Intrinsic](https://www.intrinsic.ai/)         | [azeey](https://github.com/azeey)               | Project Leader | CST (UTC-6)/CDT (UTC-5) |
+| Jenn Nguyen          | [Intrinsic](https://www.intrinsic.ai/)         | [jennuine](https://github.com/jennuine)         | Member         | PST (UTC-8)/PDT (UTC-7) |
 
 ## Current Gazebo Committers