docs: fix old links
### Prometheus Integration
-Kuberhealthy serves Prometheus metrics at the `/metrics` endpoint. If you are using the [helm chart](https://github.com/kuberhealthy/kuberhealthy/tree/prom-endpoint-docs/deploy/helm) to deploy Kuberhealthy,
+Kuberhealthy serves Prometheus metrics at the `/metrics` endpoint. If you are using the [helm chart](https://github.com/kuberhealthy/kuberhealthy/tree/master/deploy/helm) to deploy Kuberhealthy,
enable Prometheus in the chart options to have scrape configs and annotations generated for you.
```bash
helm install kuberhealthy kuberhealthy/kuberhealthy --set prometheus.enabled=true --set prometheus.prometheusRule.enabled=true
```
-Alternatively, you can use the static files that are generated from the helm chart auotmatically whenever the chart changes [here](https://github.com/kuberhealthy/kuberhealthy/blob/prom-endpoint-docs/deploy/kuberhealthy-prometheus.yaml).
+Alternatively, you can use the static files that are generated from the helm chart auotmatically whenever the chart changes [here](https://github.com/kuberhealthy/kuberhealthy/blob/master/deploy/kuberhealthy-prometheus.yaml).
