Fix broken links. (#9755)

- /docs/concepts/services-networking/service/#type-nodeport => /docs/concepts/services-networking/service/#nodeport
- /docs/concepts/services-networking/service/#type-loadbalancer => /docs/concepts/services-networking/service/#loadbalancer
- https://github.com/kubernetes/ingress-nginx/blob/master/docs/ingress-controller-catalog.md => https://github.com/kubernetes/ingress-nginx/

content/en/docs/concepts/services-networking/ingress.md

@@ -275,7 +275,7 @@ that it applies to all Ingress, such as the load balancing algorithm, backend
 weight scheme, and others. More advanced load balancing concepts
 (e.g. persistent sessions, dynamic weights) are not yet exposed through the
 Ingress. You can still get these features through the
-[service loadbalancer](https://github.com/kubernetes/ingress-nginx/blob/master/docs/ingress-controller-catalog.md).
+[service loadbalancer](https://github.com/kubernetes/ingress-nginx).
  With time, we plan to distill load balancing patterns that are applicable
 cross platform into the Ingress resource.
 
@@ -353,8 +353,8 @@ Please track the [L7 and Ingress proposal](https://github.com/kubernetes/kuberne
 
 You can expose a Service in multiple ways that don't directly involve the Ingress resource:
 
-* Use [Service.Type=LoadBalancer](/docs/concepts/services-networking/service/#type-loadbalancer)
-* Use [Service.Type=NodePort](/docs/concepts/services-networking/service/#type-nodeport)
+* Use [Service.Type=LoadBalancer](/docs/concepts/services-networking/service/#loadbalancer)
+* Use [Service.Type=NodePort](/docs/concepts/services-networking/service/#nodeport)
 * Use a [Port Proxy](https://git.k8s.io/contrib/for-demos/proxy-to-service)
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