Rework file structure to combine hosts and network guides (#351)

* Restructure siem doc

* Set up placeholder doc

Author: karenzone

docs/en/siem/hosts/hosts-ui.asciidoc

@@ -1,17 +1,17 @@
 :doctype: book
-//:sec: SecOps
-//:sec-soln: security monitoring
-//:sec-ui: SecOps
+:siem-soln-cap: SIEM Monitoring
+:siem-soln: SIEM monitoring
+:siem-ui: SIEM UI
 
-= Network Monitoring Guide
+= SIEM Solution Guide 
 
 //include::{asciidoc-dir}/../../shared/versions.asciidoc[]
 
 include::{asciidoc-dir}/../../shared/attributes.asciidoc[]
 
 include::overview.asciidoc[]
 
-include::installation.asciidoc[]
+//include::installation.asciidoc[]
 
-include::network-ui.asciidoc[]
+//include::siem-ui.asciidoc[]
 

docs/en/siem/hosts/index.asciidoc

@@ -1,4 +1,4 @@
-[[install-hosts-monitoring]]
+[[install-siem]]
 [role="xpack"]
 == Get up and running
 
@@ -27,7 +27,7 @@ such as the index pattern used to query the data, and the timestamp field used
 for sorting. For more information, see {kib}.
 
 [float]
-[[install-beats-for-host-sec]]
+[[install-beats]]
 === Install {beats} shippers
 
 To populate the security UI with metrics and

docs/en/siem/hosts/images/hosts-security-architecture.png renamed to docs/en/siem/images/siem-architecture.png

@@ -1,21 +1,28 @@
-[[hosts-monitoring-overview]]
-[role="xpack"]
-== Overview
+[[siem-overview]]
+//[role="xpack"]
+//== Overview
 
+
+== Coming soon
+
+Won't be long now!
+
+////
 beta[]
 
-Host monitoring gives you a comprehensive view into your security operations.
+{siem-soln-cap} gives you a comprehensive view into your security operations,
+and helps make those insights actionable.
 
 The UI in {kib} brings together data from a variety of sources, making it easier
 for you to identify and resolve security issues.
 
 [float]
-[[hosts-components]]
-=== Hosts monitoring components
+[[siem-components]]
+=== SIEM monitoring components
 
 Security monitoring requires the following {stack} components.
 
-image::images/hosts-security-architecture.png[]
+image::images/siem-architecture.png[]
 
 *https://www.elastic.co/products/beats[{beats}]* are open source data
 shippers that you install as agents on your servers to send operational data to
@@ -31,4 +38,5 @@ view, and interact with data stored in {es} indices. You can easily perform
 advanced data analysis and visualize your data in a variety of charts, tables,
 and maps.
 
-{kib} Hosts UI provides a dedicated user interface for visualizing host security.
+{kib} {siem-ui} provides a dedicated user interface for visualizing host security.
+////

docs/en/siem/network/index.asciidoc renamed to docs/en/siem/index.asciidoc

@@ -0,0 +1,14 @@
+[[siem-ui-overview]]
+[role="xpack"]
+== SIEM UI
+
+beta[]
+
+After you have security monitoring <<install-siem,up and
+running>> and data is streaming to {es}, use the {siem-ui} in {kib} to monitor
+and identify security problems in real time.
+
+For more information about working with the {siem-ui}, see the
+{kib} documentation.
+
+