[7.1] Drafts index.asciidoc for ML Guide (#769)

Author: lcawl

docs/en/stack/license.asciidoc

@@ -31,7 +31,7 @@ you install in {kib} or by using the {ref}/update-license.html[update license AP
 
 TIP: If you are using a basic or trial license, {security-features} are disabled
 by default. In all other licenses, {security-features} are enabled by default;
-you must {stack-ov}/security-getting-started.html[secure the {stack}] or disable
+you must {ref}/secure-cluster.html[secure the {stack}] or disable
 the {security-features}. 
 
 --

docs/en/stack/ml/anomaly-detection/getting-started-next.asciidoc

@@ -52,5 +52,4 @@ multi-metric jobs and split the data or create more complex analysis functions
 as necessary. For examples of more complicated configuration options, see
 <<ml-configuring>>.
 
-If you encounter problems, we're here to help. See <<help>> and
-<<ml-troubleshooting>>.
+If you encounter problems, we're here to help. See <<ml-troubleshooting>>.

docs/en/stack/ml/anomaly-detection/getting-started.asciidoc

@@ -55,14 +55,15 @@ easier to control which users have authority to view and manage the jobs,
 By default, you can perform all of the steps in this tutorial by using the
 built-in `elastic` super user. However, the password must be set before the user
 can do anything. For information about how to set that password, see
-<<security-getting-started>>.
+{ref}/security-getting-started.html[Getting started with security].
 
 If you are performing these steps in a production environment, take extra care
 because `elastic` has the `superuser` role and you could inadvertently make
 significant changes to the system. You can alternatively assign the
 `machine_learning_admin` and `kibana_user` roles to a user ID of your choice.
 
-For more information, see <<built-in-roles>> and <<privileges-list-cluster>>.
+For more information, see {ref}/built-in-roles.html[Built-in roles] and
+{ref}/security-privileges.html[Security privileges].
 
 --
 

docs/en/stack/ml/anomaly-detection/troubleshooting.asciidoc

@@ -13,8 +13,6 @@ answers for frequently asked questions.
 * <<ml-jobnames>>
 * <<ml-upgradedf>>
 
-To get help, see <<help>>.
-
 [[ml-rollingupgrade]]
 === Machine learning features unavailable after rolling upgrade
 

docs/en/stack/ml/get-started-trial.asciidoc

@@ -0,0 +1,20 @@
+By default, when you install {stack} products, they apply basic licenses with no 
+expiration dates. To view your license in {kib}, go to **Management** and click 
+**License Management**.
+
+[role="screenshot"]
+image::images/management-license.png["The License Management page in {kib}"]
+
+For more information about Elastic license levels, see 
+https://www.elastic.co/subscriptions.
+
+You can start a 30-day trial to try out all of the platinum features, including 
+{ml-features}. Click **Start trial** on the **License Management** page in {kib}.
+
+IMPORTANT: If your cluster has already activated a trial license for the current 
+major version, you cannot start a new trial. For example, if you have already 
+activated a trial for v6.0, you cannot start a new trial until v7.0.
+
+At the end of the trial period, the platinum features operate in a 
+{stack-ov}/license-expiration.html[degraded mode]. You can revert to a basic license, extend 
+the trial, or purchase a subscription. 

docs/en/stack/ml/images/management-license.png

@@ -0,0 +1,16 @@
+= Machine Learning in the Elastic Stack
+
+:doctype:           book
+:forum:             https://discuss.elastic.co/c/x-pack
+:blog-ref:          https://www.elastic.co/blog/
+:wikipedia:         https://en.wikipedia.org/wiki
+:es-repo-dir:       {docdir}/../../../../../elasticsearch/docs/reference
+:stack-repo-dir:    {docdir}
+include::{asciidoc-dir}/../../shared/versions/stack/{source_branch}.asciidoc[]
+include::{asciidoc-dir}/../../shared/attributes.asciidoc[]
+
+include::anomaly-detection/index.asciidoc[]
+
+include::anomaly-detection/limitations.asciidoc[]
+
+include::anomaly-detection/troubleshooting.asciidoc[]