"Overview" => "Getting Started" which more accurately captures that s…

…ection's purpose

content/doc/book/pipeline/chapter.yml

@@ -1,4 +1,4 @@
 ---
 sections:
-  - overview
+  - getting-started
   - jenkinsfile

content/doc/book/pipeline/getting-started.adoc

@@ -6,40 +6,9 @@ layout: section
 :author:
 :email: [email protected]
 :sectanchors:
-:toc: left
+:toc:
 
-= Overview
-
-== Audience and Purpose
-
-This document is intended for novice users of the Jenkins pipeline feature. The
-document explains what a pipeline is, why that matters, and how to create the
-different kinds of pipelines.
-
-== Why Pipeline?
-
-While standard Jenkins "freestyle" jobs support simple continuous integration by
-allowing you to define sequential tasks in an application lifecycle, they do not
-create a record of execution that persists through any planned or unplanned
-restarts, enable one script to address all the steps in a complex workflow, or
-confer the other advantages of pipelines.
-
-In contrast to freestyle jobs, pipelines enable you to define the whole
-application lifecycle.  Pipeline functionality helps Jenkins to support
-continuous delivery (CD). The Pipeline plugin was built with requirements for a
-flexible, extensible, and script-based CD workflow capability in mind.
-
-Accordingly, pipeline functionality is:
-
-* Durable: Pipelines can survive both planned and unplanned restarts of your Jenkins master.
-* Pausable: Pipelines can optionally stop and wait for human input or approval before completing the jobs for which they were built.
-* Versatile: Pipelines support complex real-world CD requirements, including the ability to fork or join, loop, and work in parallel with each other.
-* Extensible: The Pipeline plugin supports custom extensions to its DSL (domain scripting language) and multiple options for integration with other plugins.
-
-
-The flowchart below is an example of one continuous delivery scenario enabled by the Pipeline plugin:
-
-image::/images/pipeline/realworld-pipeline-flow.png[title="Pipeline Flow", 800]
+= Getting Started
 
 == Pipeline Defined