Update ingress-controllers.md

Ambassador apparently renamed to Emissary-Ingress.

Author: Kamil Dzierżanowski

content/en/docs/concepts/services-networking/ingress-controllers.md

@@ -28,15 +28,15 @@ Kubernetes as a project supports and maintains [AWS](https://github.com/kubernet
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 * [AKS Application Gateway Ingress Controller](https://docs.microsoft.com/azure/application-gateway/tutorial-ingress-controller-add-on-existing?toc=https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fazure%2Faks%2Ftoc.json&bc=https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fazure%2Fbread%2Ftoc.json) is an ingress controller that configures the [Azure Application Gateway](https://docs.microsoft.com/azure/application-gateway/overview).
-* [Ambassador](https://www.getambassador.io/) API Gateway is an [Envoy](https://www.envoyproxy.io)-based ingress
-  controller.
 * [Apache APISIX ingress controller](https://github.com/apache/apisix-ingress-controller) is an [Apache APISIX](https://github.com/apache/apisix)-based ingress controller.
 * [Avi Kubernetes Operator](https://github.com/vmware/load-balancer-and-ingress-services-for-kubernetes) provides L4-L7 load-balancing using [VMware NSX Advanced Load Balancer](https://avinetworks.com/).
 * [BFE Ingress Controller](https://github.com/bfenetworks/ingress-bfe) is a [BFE](https://www.bfe-networks.net)-based ingress controller.
 * [Cilium Ingress Controller](https://docs.cilium.io/en/stable/network/servicemesh/ingress/) is an ingress controller powered by [Cilium](https://cilium.io/).
 * The [Citrix ingress controller](https://github.com/citrix/citrix-k8s-ingress-controller#readme) works with
   Citrix Application Delivery Controller.
 * [Contour](https://projectcontour.io/) is an [Envoy](https://www.envoyproxy.io/) based ingress controller.
+* [Emissary-Ingress](https://www.getambassador.io/products/api-gateway) API Gateway is an [Envoy](https://www.envoyproxy.io)-based ingress
+  controller.
 * [EnRoute](https://getenroute.io/) is an [Envoy](https://www.envoyproxy.io) based API gateway that can run as an ingress controller.
 * [Easegress IngressController](https://github.com/megaease/easegress/blob/main/doc/reference/ingresscontroller.md) is an [Easegress](https://megaease.com/easegress/) based API gateway that can run as an ingress controller.
 * F5 BIG-IP [Container Ingress Services for Kubernetes](https://clouddocs.f5.com/containers/latest/userguide/kubernetes/)