controlplane: add README

Signed-off-by: Sanskar Jaiswal <jaiswalsanskar078@gmail.com>

controlplane/README.md

@@ -0,0 +1,33 @@
+# Rust Controlplane
+
+This directory hosts the code for the WIP Rust controlplane. It aims to port the Golang reconcilers in `blixt/controllers` in Rust.
+For more context behind the decision, please see https://github.com/kubernetes-sigs/blixt/issue/176 and https://github.com/kubernetes-sigs/blixt/discussions/150.
+
+## Progress
+
+- [] GatewayClass reconciler
+- [x] Gateway reconciler
+- [] TCPRoute reconciler
+- [] UDPRoute reconciler
+
+## Getting started
+
+* Create a Kubernetes cluster
+
+```bash
+make build.cluster
+```
+
+* Install Gateway API CRDS; create a `GatewayClass` and `Gateway`
+
+```bash
+kubectl apply -k https://github.com/kubernetes-sigs/gateway-api/config/crd/experimental\?ref\=v1.0.0
+kubectl apply -f config/samples/gateway_v1.yaml
+```
+
+* Run the reconciler
+
+```bash
+cd controlplane
+make run
+```