~ extend readme guide

README.md

@@ -27,7 +27,9 @@ kubectl apply -f https://github.com/jetstack/cert-manager/releases/download/v1.6
 
 - Install next the helm chart if [helm v3 is deployed](https://helm.sh/docs/intro/install/) on your machine
 ```bash
-helm install -n cert-manager gcore-webhook ./deploy/helm
+git clone https://github.com/G-Core/cert-manager-webhook-gcore.git
+cd cert-manager-webhook-gcore
+helm install -n cert-manager gcore-webhook --set groupName='<YOUR_GROUP_NAME>' ./deploy/helm
 ```
 **NOTE**: The kubernetes resources used to install the Webhook should be deployed within the same namespace as the cert-manager.
 
@@ -108,7 +110,7 @@ spec:
               key: token
             production: true
             ttl: 600
-          groupName: acme.mycompany.com
+          groupName: <YOUR_GROUP_NAME> # Use the groupName defined above
           solverName: gcore
 EOF
 ```

deploy/webhook-all.yml

@@ -69,7 +69,7 @@ metadata:
   name: gcore-webhook:domain-solver
 rules:
 - apiGroups:
-  - acme.mycompany.com
+  - acme.gcore.com
   resources:
   - '*'
   verbs:
@@ -259,7 +259,7 @@ spec:
         - --tls-private-key-file=/tls/tls.key
         env:
         - name: GROUP_NAME
-          value: acme.mycompany.com
+          value: acme.gcore.com
         image: ghcr.io/g-core/cert-manager-webhook-gcore:latest
         imagePullPolicy: IfNotPresent
         livenessProbe:
@@ -314,9 +314,9 @@ metadata:
   labels:
     app.kubernetes.io/name: gcore-webhook
     app.kubernetes.io/version: 0.1.1
-  name: v1alpha1.acme.mycompany.com
+  name: v1alpha1.acme.gcore.com
 spec:
-  group: acme.mycompany.com
+  group: acme.gcore.com
   groupPriorityMinimum: 1000
   service:
     name: gcore-webhook