[DOCS] Moves X-Pack configurationg pages in table of contents (#30702)

docs/reference/index-shared1.asciidoc

@@ -2,5 +2,3 @@
 include::getting-started.asciidoc[]
 
 include::setup.asciidoc[]
-
-include::upgrade.asciidoc[]

docs/reference/index-shared2.asciidoc

@@ -1,2 +1,4 @@
 
+include::upgrade.asciidoc[]
+
 include::migration/index.asciidoc[]

x-pack/docs/en/index.asciidoc

@@ -3,6 +3,16 @@ include::{es-repo-dir}/index-shared1.asciidoc[]
 
 include::setup/setup-xes.asciidoc[]
 
+include::{xes-repo-dir}/monitoring/configuring-monitoring.asciidoc[]
+
+include::{xes-repo-dir}/security/configuring-es.asciidoc[]
+
+include::setup/setup-xclient.asciidoc[]
+
+include::{xes-repo-dir}/settings/configuring-xes.asciidoc[]
+
+include::setup/bootstrap-checks-xes.asciidoc[]
+
 include::{es-repo-dir}/index-shared2.asciidoc[]
 
 include::{es-repo-dir}/index-shared3.asciidoc[]

x-pack/docs/en/setup/bootstrap-checks-xes.asciidoc

@@ -1,10 +1,6 @@
 [role="xpack"]
 [[bootstrap-checks-xpack]]
 == Bootstrap Checks for {xpack}
-++++
-<titleabbrev>Bootstrap Checks</titleabbrev>
-++++
-
 
 In addition to the <<bootstrap-checks,{es} bootstrap checks>>, there are
 checks that are specific to {xpack} features.

x-pack/docs/en/setup/setup-xes.asciidoc

@@ -1,9 +1,7 @@
 [role="xpack"]
 [[setup-xpack]]
-= Set up {xpack}
+== Set up {xpack}
 
-[partintro]
---
 {xpack} is an Elastic Stack extension that provides security, alerting,
 monitoring, reporting, machine learning, and many other capabilities. By default, 
 when you install {es}, {xpack} is installed. 
@@ -20,10 +18,3 @@ https://www.elastic.co/subscriptions.
 * <<settings-xpack>>
 * <<bootstrap-checks-xpack>>
 
---
-
-include::{xes-repo-dir}/monitoring/configuring-monitoring.asciidoc[]
-include::{xes-repo-dir}/security/configuring-es.asciidoc[]
-include::setup-xclient.asciidoc[]
-include::{xes-repo-dir}/settings/configuring-xes.asciidoc[]
-include::bootstrap-checks-xes.asciidoc[]