[doc] update doc links (#758)

elasticsearch/README.md

@@ -344,9 +344,8 @@ automated testing pipeline.
 2. Add any required secrets or credentials into an Elasticsearch keystore
 following the [how to use the keystore][] guide.
 3. Configure the [snapshot repository][] as you normally would.
-4. To automate snapshots you can use a tool like [curator][]. In the future
-there are plans to have Elasticsearch manage automated snapshots with
-[Snapshot Lifecycle Management][].
+4. To automate snapshots you can use [Snapshot Lifecycle Management][] or a tool
+like [curator][].
 
 ### How to configure templates post-deployment?
 
@@ -432,7 +431,7 @@ about our development and testing process.
 [node affinity settings]: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#node-affinity-beta-feature
 [node-certificates]: https://www.elastic.co/guide/en/elasticsearch/reference/current/configuring-tls.html#node-certificates
 [nodePort]: https://kubernetes.io/docs/concepts/services-networking/service/#nodeport
-[nodes types]: https://www.elastic.co/guide/en/elasticsearch/reference/7.6/modules-node.html
+[nodes types]: https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-node.html
 [nodeSelector]: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector
 [openshift]: https://github.com/elastic/helm-charts/tree/master/elasticsearch/examples/openshift
 [priorityClass]: https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
@@ -442,7 +441,7 @@ about our development and testing process.
 [secret]: https://kubernetes.io/docs/concepts/configuration/secret/#using-secrets
 [securityContext]: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/
 [service types]: https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types
-[snapshot lifecycle management]: https://github.com/elastic/elasticsearch/issues/38461
+[snapshot lifecycle management]: https://www.elastic.co/guide/en/elasticsearch/reference/current/snapshot-lifecycle-management.html
 [snapshot plugin]: https://www.elastic.co/guide/en/elasticsearch/plugins/current/repository.html
 [snapshot repository]: https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-snapshots.html
 [supported configurations]: https://github.com/elastic/helm-charts/tree/master/README.md#supported-configurations

elasticsearch/examples/migration/README.md

@@ -163,5 +163,5 @@ working correctly you can cleanup leftover resources from your old cluster.
 [data.yml]: https://github.com/elastic/helm-charts/blob/master/elasticsearch/examples/migration/data.yml
 [helm/charts]: https://github.com/helm/charts/tree/master/stable/elasticsearch
 [master.yml]: https://github.com/elastic/helm-charts/blob/master/elasticsearch/examples/migration/master.yml
-[restoring to a different cluster guide]: https://www.elastic.co/guide/en/elasticsearch/reference/6.6/modules-snapshots.html#_restoring_to_a_different_cluster
-[rolling upgrades guide]: https://www.elastic.co/guide/en/elasticsearch/reference/6.6/rolling-upgrades.html
+[restoring to a different cluster guide]: https://www.elastic.co/guide/en/elasticsearch/reference/6.8/modules-snapshots.html#_restoring_to_a_different_cluster
+[rolling upgrades guide]: https://www.elastic.co/guide/en/elasticsearch/reference/6.8/rolling-upgrades.html

filebeat/README.md

@@ -192,13 +192,13 @@ about our development and testing process.
 [examples/security]: https://github.com/elastic/helm-charts/tree/master/filebeat/examples/security
 [filebeat docker image]: https://www.elastic.co/guide/en/beats/filebeat/current/running-on-docker.html
 [filebeat oss docker image]: https://www.docker.elastic.co/r/beats/filebeat-oss
-[filebeat outputs]: https://www.elastic.co/guide/en/beats/filebeat/master/configuring-output.html
+[filebeat outputs]: https://www.elastic.co/guide/en/beats/filebeat/current/configuring-output.html
 [helm]: https://helm.sh
 [hostNetwork]: https://kubernetes.io/docs/concepts/policy/pod-security-policy/#host-namespaces
 [hostPath]: https://kubernetes.io/docs/concepts/storage/volumes/#hostpath
 [imagePullPolicy]: https://kubernetes.io/docs/concepts/containers/images/#updating-images
 [imagePullSecrets]: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/#create-a-pod-that-uses-your-secret
-[kafka output]: https://www.elastic.co/guide/en/beats/filebeat/master/kafka-output.html
+[kafka output]: https://www.elastic.co/guide/en/beats/filebeat/current/kafka-output.html
 [kubernetes secrets]: https://kubernetes.io/docs/concepts/configuration/secret/
 [labels]: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
 [nodeSelector]: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector