Updated readme

README.adoc

@@ -1,4 +1,8 @@
-// Do not edit this file (e.g. go instead to src/main/asciidoc)
+////
+DO NOT EDIT THIS FILE. IT WAS GENERATED.
+Manual changes to this file will be lost when it is generated again.
+Edit the files in the src/main/asciidoc/ directory instead.
+////
 
 image:https://circleci.com/gh/spring-cloud/spring-cloud-build.svg?style=svg[link="https://travis-ci.org/spring-cloud/spring-cloud-build"]
 
@@ -239,22 +243,26 @@ approach of generating documentation just add these plugins to your `docs` modul
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-dependency-plugin</artifactId> <1>
 					</plugin>
+					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
+						<artifactId>maven-resources-plugin</artifactId> <2>
+					</plugin>
 					<plugin>
 						<groupId>org.asciidoctor</groupId>
-						<artifactId>asciidoctor-maven-plugin</artifactId> <2>
+						<artifactId>asciidoctor-maven-plugin</artifactId> <3>
 					</plugin>
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
-						<artifactId>maven-antrun-plugin</artifactId> <3>
-						<inherited>false</inherited>
+						<artifactId>maven-antrun-plugin</artifactId> <4>
 					</plugin>
 				</plugins>
 			</build>
 		</profile>
 	</profiles>
 ----
-<1> This plugin downloads and unpacks the resources of the `spring-cloud-build-docs` module
-<2> This plugin is required to parse the Asciidoctor documentation
-<3> This plugin is required to copy resources into proper final destinations and to generate main README.adoc
+<1> This plugin downloads the resources of the `spring-cloud-build-docs` module
+<2> This plugin unpacks the resources of the `spring-cloud-build-docs` module
+<3> This plugin is required to parse the Asciidoctor documentation
+<4> This plugin is required to copy resources into proper final destinations and to generate main README.adoc and to assert that no files use unresolved links
 
 IMPORTANT: The order of plugin declaration is important!