add modules in readme

Author: nataliasitko

commerce-mock-lite/README.md

@@ -28,10 +28,11 @@ docker run -d \
 
 To run the mock using `SAP Business Technology Platform, Kyma Runtime` as a runtime environment, perform the following steps:
 
-1. Set up the Namespace:
+1. Set up the namespace:
 
 ```bash
 kubectl create namespace mocks
+kubectl label namespace mocks istio-injection=enabled --overwrite
 ```
 
 2. Deploy the mock:
@@ -45,10 +46,22 @@ These commands expose the API of the mock via an `APIRule` resource and makes it
 
 ## Run Commerce Mock on Kubernetes
 
-1. Set up the Namespace:
+1. Add the Istio and API Gateway modules:
+
+```bash
+kubectl create ns kyma-system
+kubectl label namespace kyma-system istio-injection=enabled --overwrite
+kubectl apply -f https://github.com/kyma-project/istio/releases/latest/download/istio-manager.yaml
+kubectl apply -f https://github.com/kyma-project/istio/releases/latest/download/istio-default-cr.yaml
+kubectl apply -f https://github.com/kyma-project/api-gateway/releases/latest/download/api-gateway-manager.yaml
+kubectl apply -f https://github.com/kyma-project/api-gateway/releases/latest/download/apigateway-default-cr.yaml
+```
+
+2. Set up the namespace:
 
 ```bash
 kubectl create namespace mocks
+kubectl label namespace mocks istio-injection=enabled --overwrite
 ```
 
 2. Deploy the mock: