Update autodiscover docs to add missing settings (#14865) (#16510)

`cleanup_timeout` and some other settings were missing. This PR adds
them to the docs.

(cherry picked from commit 99beb81)

libbeat/docs/shared-autodiscover.asciidoc

@@ -110,6 +110,17 @@ autodiscover.providers:
               - "/mnt/logs/${data.docker.container.id}/*.log"
 -------------------------------------------------------------------------------------
 
+It has the following settings:
+
+`host`:: (Optional) Docker socket (UNIX or TCP socket). It uses
+`unix:///var/run/docker.sock` by default.
+`ssl`:: (Optional) SSL configuration to use when connecting to the Docker
+socket.
+`cleanup_timeout`:: (Optional) Specify the time of inactivity before stopping the
+running configuration for a container, 60s by default.
+`labels.dedot`:: (Optional) Default to be false. If set to true, replace dots in
+ labels with `_`.
+
 =======================================
 endif::[]
 
@@ -204,6 +215,8 @@ The `kubernetes` autodiscover provider has the following configuration settings:
   metadata. If it is not set, the processor collects metadata from all
   namespaces. It is unset by default. The namespace configuration only applies to
   kubernetes resources that are namespace scoped.
+`cleanup_timeout`:: (Optional) Specify the time of inactivity before stopping the
+running configuration for a container, 60s by default.
 `kube_config`:: (Optional) Use given config file as configuration for Kubernetes
   client. If kube_config is not set, KUBECONFIG environment variable will be
   checked and if not present it will fall back to InCluster.

libbeat/processors/add_kubernetes_metadata/docs/add_kubernetes_metadata.asciidoc

@@ -89,4 +89,4 @@ client. It defaults to `KUBECONFIG` environment variable if present.
 `default_indexers.enabled`:: (Optional) Enable/Disable default pod indexers, in
 case you want to specify your own.
 `default_matchers.enabled`:: (Optional) Enable/Disable default pod matchers, in
-case you want to specify your own.
+case you want to specify your own.