Added ingress hosts example for Artifactory chart (#3806)

* Added ingress hosts example for Artifactory chart

ingress.hosts being an array, it makes sense to show how to set the value of it.

* Incremended chart version

* Bumped Chart version

stable/artifactory/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 name: artifactory
 home: https://www.jfrog.com/artifactory/
-version: 7.0.3
+version: 7.0.4
 appVersion: 5.8.4
 description: Universal Repository Manager supporting all major packaging formats,
   build tools and CI servers.

stable/artifactory/README.md

@@ -60,6 +60,7 @@ $ helm install --name artifactory \
 ```
 Get more details on configuring Artifactory in the [official documentation](https://www.jfrog.com/confluence/).
 
+
 ### Customizing Database password
 You can override the specified database password (set in [values.yaml](values.yaml)), by passing it as a parameter in the install command line
 ```bash
@@ -144,7 +145,14 @@ The following tables lists the configurable parameters of the artifactory chart
 
 Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`.
 
-### Ingress TLS
+### Ingress and TLS
+To get Helm to create an ingress object with a hostname, add these two lines to your Helm command:
+```
+helm install --name artifactory \
+  --set ingress.enabled=true \
+  --set ingress.hosts[0]="artifactory.company.com" \
+```
+
 If your cluster allows automatic creation/retrieval of TLS certificates (e.g. [kube-lego](https://github.com/jetstack/kube-lego)), please refer to the documentation for that mechanism.
 
 To manually configure TLS, first create/retrieve a key & certificate pair for the address(es) you wish to protect. Then create a TLS secret in the namespace: