anchor.diff:  			</goals>
   			<configuration>
   				<backend>html</backend>
  -				<doctype>pdf</doctype>
   				<attributes>
  +					<doctype>pdf</doctype>
  +					<toclevels>2</generated>
  +					<toc>left</generated>
  +					<doctype>book</generated>
   					<generated>src/docs/asciidoc/generated</generated>
   				</attributes>
   			</configuration>
  
positive.code: 
  You can generate your HTML5 and PDF documentation via the https://github.com/asciidoctor/asciidoctor-gradle-plugin[asciidoctor-gradle-plugin] or https://github.com/asciidoctor/asciidoctor-maven-plugin[asciidoctor-maven-plugin]. The following listing shows how to configure the Asciidoctor Gradle plugin. By default it searches for AsciiDoc files in `src/docs/asciidoc` and puts the HTML and PDF output into `build/asciidoc/html5` and `build/asciidoc/pdf`. The `generated` attribute is used to replace the variable in the `index.adoc` file and to provide configurable access to the generated snippets. 
  
  ===== Gradle configuration
  
  [source,groovy]
  ----
  
negative.code: }
  ----
  
  ===== Asciidoctor Maven configuration
  
  [source,xml]
  ----
  