Reorder documentation overview section

The documentation overview sections is supposed to provide a map
for the rest of the reference document. The getting help and upgrading
sections were moved to align with that.

spring-boot-project/spring-boot-docs/src/docs/asciidoc/actuator/from-1x.adoc

+[[upgrading.from-1x]]
+== Upgrading from 1.x
+
+If you are upgrading from the `1.x` release of Spring Boot, check the {github-wiki}/Spring-Boot-2.0-Migration-Guide["`migration guide`" on the project wiki] that provides detailed upgrade instructions.
+Check also the {github-wiki}["`release notes`"] for a list of "`new and noteworthy`" features for each release.
\ No newline at end of file

spring-boot-project/spring-boot-docs/src/docs/asciidoc/documentation.adoc

@@ -3,7 +3,7 @@ include::attributes.adoc[]
 
 
 [[documentation]]
-= Spring Boot Documentation
+= Documentation Overview
 include::attributes.adoc[]
 
 
@@ -11,20 +11,17 @@ include::attributes.adoc[]
 This section provides a brief overview of Spring Boot reference documentation.
 It serves as a map for the rest of the document.
 
+The latest copy of this document is available at {spring-boot-current-docs}.
 
 
-include::documentation/about.adoc[]
-
-include::documentation/getting-help.adoc[]
+include::documentation/first-steps.adoc[]
 
 include::documentation/upgrading.adoc[]
 
-include::documentation/first-steps.adoc[]
-
 include::documentation/using.adoc[]
 
 include::documentation/features.adoc[]
 
 include::documentation/actuator.adoc[]
 
-include::documentation/advanced.adoc[]
+include::documentation/advanced.adoc[]
\ No newline at end of file

spring-boot-project/spring-boot-docs/src/docs/asciidoc/documentation/about.adoc

-[[documentation.about]]
-== About the Documentation
-The Spring Boot reference guide is available as:
-
-* {spring-boot-docs}/html/[Multi-page HTML]
-* {spring-boot-docs}/htmlsingle/[Single page HTML]
-* {spring-boot-docs}/pdf/spring-boot-reference.pdf[PDF]
-
-The latest copy is available at {spring-boot-current-docs}.

spring-boot-project/spring-boot-docs/src/docs/asciidoc/documentation/upgrading.adoc

 [[documentation.upgrading]]
 == Upgrading From an Earlier Version
-Instructions for how to upgrade from earlier versions of Spring Boot are provided on the project {github-wiki}[wiki].
-Follow the links in the {github-wiki}#release-notes[release notes] section to find the version that you want to upgrade to.
-
-Upgrading instructions are always the first item in the release notes.
-If you are more than one release behind, please make sure that you also review the release notes of the versions that you jumped.
 
 You should always ensure that you are running a {github-wiki}/Supported-Versions[supported version] of Spring Boot.
+
+Depending on the version that you are upgrading to, you can find some additional tips here:
+
+* *From 1.x:* <<actuator#upgrading.from-1x, Upgrading from 1.x>>
+* *To a new feature release:* <<upgrading#upgrading.to-feature, Upgrading to New Feature Release>>
+* *Spring Boot CLI:* <<upgrading#upgrading.cli, Upgrading the Spring Boot CLI>>
+

spring-boot-project/spring-boot-docs/src/docs/asciidoc/documentation/using.adoc

 [[documentation.using]]
-== Working with Spring Boot
+== Developing with Spring Boot
 Ready to actually start using Spring Boot? <<using#using, We have you covered>>:
 
 * *Build systems:* <<using#using.build-systems.maven, Maven>> | <<using#using.build-systems.gradle, Gradle>> | <<using#using.build-systems.ant, Ant>> | <<using#using.build-systems.starters, Starters>>

spring-boot-project/spring-boot-docs/src/docs/asciidoc/documentation/getting-help.adoc → spring-boot-project/spring-boot-docs/src/docs/asciidoc/getting-help.adoc

-[[documentation.getting-help]]
-== Getting Help
+[[getting-help]]
+= Getting Help
+include::attributes.adoc[]
+
 If you have trouble with Spring Boot, we would like to help.
 
 * Try the <<howto#howto, How-to documents>>.
-  They provide solutions to the most common questions.
+They provide solutions to the most common questions.
 * Learn the Spring basics.
-  Spring Boot builds on many other Spring projects.
-  Check the https://spring.io[spring.io] web-site for a wealth of reference documentation.
-  If you are starting out with Spring, try one of the https://spring.io/guides[guides].
+Spring Boot builds on many other Spring projects.
+Check the https://spring.io[spring.io] web-site for a wealth of reference documentation.
+If you are starting out with Spring, try one of the https://spring.io/guides[guides].
 * Ask a question.
-  We monitor https://stackoverflow.com[stackoverflow.com] for questions tagged with https://stackoverflow.com/tags/spring-boot[`spring-boot`].
+We monitor https://stackoverflow.com[stackoverflow.com] for questions tagged with https://stackoverflow.com/tags/spring-boot[`spring-boot`].
 * Report bugs with Spring Boot at https://github.com/spring-projects/spring-boot/issues.
 
 NOTE: All of Spring Boot is open source, including the documentation.

spring-boot-project/spring-boot-docs/src/docs/asciidoc/getting-started/installing.adoc

@@ -233,29 +233,3 @@ You should see the following output:
 	Hello World!
 ----
 
-
-
-[[getting-started.installing.upgrading]]
-=== Upgrading from an Earlier Version of Spring Boot
-If you are upgrading from the `1.x` release of Spring Boot, check the {github-wiki}/Spring-Boot-2.0-Migration-Guide["`migration guide`" on the project wiki] that provides detailed upgrade instructions.
-Check also the {github-wiki}["`release notes`"] for a list of "`new and noteworthy`" features for each release.
-
-When upgrading to a new feature release, some properties may have been renamed or removed.
-Spring Boot provides a way to analyze your application's environment and print diagnostics at startup, but also temporarily migrate properties at runtime for you.
-To enable that feature, add the following dependency to your project:
-
-[source,xml,indent=0,subs="verbatim"]
-----
-	<dependency>
-		<groupId>org.springframework.boot</groupId>
-		<artifactId>spring-boot-properties-migrator</artifactId>
-		<scope>runtime</scope>
-	</dependency>
-----
-
-WARNING: Properties that are added late to the environment, such as when using `@PropertySource`, will not be taken into account.
-
-NOTE: Once you're done with the migration, please make sure to remove this module from your project's dependencies.
-
-To upgrade an existing CLI installation, use the appropriate package manager command (for example, `brew upgrade`).
-If you manually installed the CLI, follow the <<getting-started#getting-started.installing.cli.manual-installation, standard instructions>>, remembering to update your `PATH` environment variable to remove any older references.

spring-boot-project/spring-boot-docs/src/docs/asciidoc/index.adoc

@@ -4,14 +4,17 @@ include::authors.adoc[]
 v{spring-boot-version}
 include::attributes.adoc[]
 
+This document is also available as {spring-boot-docs}/html/[Multi-page HTML], {spring-boot-docs}/htmlsingle/[Single page HTML] and {spring-boot-docs}/pdf/spring-boot-reference.pdf[PDF].
 
 
 The reference documentation consists of the following sections:
 
 [horizontal]
 <<legal#legal,Legal>> :: Legal information.
-<<documentation#documentation,Documentation Overview>> :: About the Documentation, Getting Help, First Steps, and more.
+<<getting-help#getting-help,Getting Help>> :: Resources for getting help.
+<<documentation#documentation,Documentation Overview>> :: About the Documentation, First Steps, and more.
 <<getting-started#getting-started,Getting Started>> :: Introducing Spring Boot, System Requirements, Servlet Containers, Installing Spring Boot, Developing Your First Spring Boot Application
+<<upgrading#upgrading,Upgrading Spring Boot Applications>> :: Upgrading from 1.x, Upgrading to a new feature release, Upgrading the Spring Boot CLI
 <<using#using,Using Spring Boot>> :: Build Systems, Structuring Your Code, Configuration, Spring Beans and Dependency Injection, DevTools, and more.
 <<features#features,Spring Boot Features>> :: Profiles, Logging, Security, Caching, Spring Integration, Testing, and more.
 <<actuator#actuator,Spring Boot Actuator>> :: Monitoring, Metrics, Auditing, and more.

spring-boot-project/spring-boot-docs/src/docs/asciidoc/index.singleadoc

@@ -4,14 +4,19 @@ include::authors.adoc[]
 v{spring-boot-version}
 include::attributes.adoc[]
 
+This document is also available as {spring-boot-docs}/html/[Multi-page HTML], {spring-boot-docs}/htmlsingle/[Single page HTML] and {spring-boot-docs}/pdf/spring-boot-reference.pdf[PDF].
 
 
 include::legal.adoc[leveloffset=+1]
 
+include::getting-help.adoc[leveloffset=+1]
+
 include::documentation.adoc[leveloffset=+1]
 
 include::getting-started.adoc[leveloffset=+1]
 
+include::upgrading.adoc[leveloffset=+1]
+
 include::using.adoc[leveloffset=+1]
 
 include::features.adoc[leveloffset=+1]

spring-boot-project/spring-boot-docs/src/docs/asciidoc/upgrading.adoc

+[[upgrading]]
+= Upgrading Spring Boot
+include::attributes.adoc[]
+
+Instructions for how to upgrade from earlier versions of Spring Boot are provided on the project {github-wiki}[wiki].
+Follow the links in the {github-wiki}#release-notes[release notes] section to find the version that you want to upgrade to.
+
+Upgrading instructions are always the first item in the release notes.
+If you are more than one release behind, please make sure that you also review the release notes of the versions that you jumped.
+
+include::upgrading/from-1x.adoc[]
+
+include::upgrading/to-feature.adoc[]
+
+include::upgrading/cli.adoc[]
\ No newline at end of file

spring-boot-project/spring-boot-docs/src/docs/asciidoc/upgrading/cli.adoc

+[[upgrading.cli]]
+== Upgrading the Spring Boot CLI
+
+To upgrade an existing CLI installation, use the appropriate package manager command (for example, `brew upgrade`).
+If you manually installed the CLI, follow the <<getting-started#getting-started.installing.cli.manual-installation, standard instructions>>, remembering to update your `PATH` environment variable to remove any older references.
\ No newline at end of file

spring-boot-project/spring-boot-docs/src/docs/asciidoc/upgrading/from-1x.adoc

+[[upgrading.from-1x]]
+== Upgrading from 1.x
+
+If you are upgrading from the `1.x` release of Spring Boot, check the {github-wiki}/Spring-Boot-2.0-Migration-Guide["`migration guide`" on the project wiki] that provides detailed upgrade instructions.
+Check also the {github-wiki}["`release notes`"] for a list of "`new and noteworthy`" features for each release.
\ No newline at end of file

spring-boot-project/spring-boot-docs/src/docs/asciidoc/upgrading/to-feature.adoc

+[[upgrading.to-feature]]
+== Upgrading to a new feature release
+
+When upgrading to a new feature release, some properties may have been renamed or removed.
+Spring Boot provides a way to analyze your application's environment and print diagnostics at startup, but also temporarily migrate properties at runtime for you.
+To enable that feature, add the following dependency to your project:
+
+[source,xml,indent=0,subs="verbatim"]
+----
+	<dependency>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-properties-migrator</artifactId>
+		<scope>runtime</scope>
+	</dependency>
+----
+
+WARNING: Properties that are added late to the environment, such as when using `@PropertySource`, will not be taken into account.
+
+NOTE: Once you're done with the migration, please make sure to remove this module from your project's dependencies.
\ No newline at end of file

spring-boot-project/spring-boot-docs/src/docs/asciidoc/using.adoc

 [[using]]
-= Using Spring Boot
+= Developing with Spring Boot
 include::attributes.adoc[]