message: docs: add Ontruck to users list
diff: @@ -32,6 +32,7 @@ Join our growing community!
  - [Hostnfly](https://www.hostnfly.com/) [@alexisrosuel]
  - [Lime](https://www.limebike.com/) [@cxmcc]
  - [Lyft](https://www.lyft.com/)
  +- [Ontruck](https://www.ontruck.com/)
  ### Financial Services
  - [Aktia Bank plc](https://www.aktia.com) [@villebro]
  