The AssertJ User Guide is available here: https://assertj.github.io/doc/
This project contains the AsciiDoc sources for the guide.
src/docs/asciidoc: AsciiDoc filessrc/test/java: Java test source code that can be included in the AsciiDoc filessrc/test/resources: Classpath resources that can be included in the AsciiDoc files or used in tests
This following Gradle command generates the HTML version of the User Guide as
build/docs/asciidoc/user-guide/index.html.
gradlew asciidoctor