Update README.md

Refresh team list.

README.md

@@ -44,19 +44,25 @@ The PX4 Dev Team syncs up on a [weekly dev call](https://dev.px4.io/en/contribut
     * [Dennis Mannhart](https://github.com/Stifael)
     * [Matthias Grob](https://github.com/MaEtUgR)
   * [VTOL Flight Control](https://github.com/PX4/Firmware/labels/vtol)
+    * [Daniel Agar](https://github.com/dagar)
+    * [Mathieu Bresciani](https://github.com/bresch)
+    * [Sander Smeets](https://github.com/sanderux)
     * [Roman Bapst](https://github.com/tumbili)
     * [Andreas Antener](https://github.com/AndreasAntener)
-    * [Sander Smeets](https://github.com/sanderux)
   * [Fixed Wing Flight Control](https://github.com/PX4/Firmware/labels/fixedwing)
     * [Daniel Agar](https://github.com/dagar)
     * [Paul Riseborough](https://github.com/priseborough)
-  * Racers - [Anton Matosov](https://github.com/anton-matosov)
+  * Racers - [Matthias Grob](https://github.com/MaEtUgR)
   * OS / drivers - [David Sidrane](https://github.com/davids5)
   * [UAVCAN](https://github.com/PX4/Firmware/labels/uavcan) / Industrial - [Pavel Kirienko](https://github.com/pavel-kirienko)
   * [State Estimation](https://github.com/PX4/Firmware/issues?q=is%3Aopen+is%3Aissue+label%3A%22state+estimation%22) - [James Goppert](https://github.com/jgoppert), [Paul Riseborough](https://github.com/priseborough)
-  * VIO - [Mohammed Kabir](https://github.com/mhkabir), [Christoph Tobler](https://github.com/ChristophTobler)
+  * Vision based navigation
+    * [Christoph Tobler](https://github.com/ChristophTobler)
+    * [Mohammed Kabir](https://github.com/mhkabir)
   * Obstacle Avoidance - [Vilhjalmur Vilhjalmsson](https://github.com/vilhjalmur89)
-  * [Snapdragon](https://github.com/PX4/Firmware/labels/snapdragon) - [Mark Charlebois](https://github.com/mcharleb) 
+  * [Snapdragon](https://github.com/PX4/Firmware/labels/snapdragon)
+    * [Christoph Tobler](https://github.com/ChristophTobler)
+    * [Mark Charlebois](https://github.com/mcharleb) 
   * [Intel Aero](https://github.com/PX4/Firmware/labels/intel%20aero)
     * [Lucas De Marchi](https://github.com/lucasdemarchi)
     * [José Roberto de Souza](https://github.com/zehortigoza)