Add traversaro to governance.md (gazebosim#552)

* Add traversaro to governance.md

Follow-up to gazebosim#532.

Signed-off-by: Silvio Traversaro <[email protected]>

* Fix alphabetization

Signed-off-by: Silvio Traversaro <[email protected]>

---------

Signed-off-by: Silvio Traversaro <[email protected]>

Author: traversaro

governance.md

@@ -60,6 +60,7 @@ The Gazebo PMC currently consists of the following individuals:
 | Benjamin Perseghetti | [Rudis Labs](https://github.com/rudislabs)     | [bperseghetti](https://github.com/bperseghetti) | Member         | EST (UTC-5)/EDT (UTC-4) |
 | 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) |
+| Silvio Traversaro    | [Italian Institute of Technology](https://www.iit.it) | [traversaro](https://github.com/traversaro)  | Member     | CEST (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) |