Add CLI screen

README.md

@@ -1,3 +1,23 @@
 # steerer
 
-service mesh steerer
+Istio progressive rollout gated by Prometheus HTTP success rate metric
+
+### Usage
+
+Create a test namespace:
+
+```bash
+kubectl apply -f ./artifacts/namespace/
+```
+
+Create GA and canary deployments, services and Istio virtual service:
+
+```bash
+kubectl apply -f ./artifacts/workloads/
+```
+
+Start rollout:
+
+![rollout-cli](docs/screens/rollout-cli-output.png)
+
+