Add FireHydrant to README
@@ -67,6 +67,7 @@ Its major features are:
- [College of William & Mary](https://www.wm.edu)
- [Control Plane](https://control-plane.io)
- [Crowd Riff](https://crowdriff.com)
+- [FireHydrant](https://firehydrant.io)
- [Gini](https://gini.net)
- [Improwised Technologies](https://www.improwised.com/)
- [iQmetrix](https://www.iqmetrix.com)
