Added missing ingress from role list
@@ -726,7 +726,8 @@ namespaces:
[ - <string> ]
```
-Where `<role>` must be `endpoints`, `service`, `pod`, or `node`.
+Where `<role>` must be `endpoints`, `service`, `pod`, `node`, or
+`ingress`.
See [this example Prometheus configuration file](/documentation/examples/prometheus-kubernetes.yml)
for a detailed example of configuring Prometheus for Kubernetes.
