appendFileContentsTo(document.head(), "<style>", releaseNotesCss, "</style>");
    }

    private void appendFileContentsTo(Element element, String open, File file, String close) {
        try (FileReader reader = new FileReader(file)) {
            element.append(open + CharStreams.toString(reader) + close);
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        }
    }

#### Import Gradle into IntelliJ

To import Gradle into IntelliJ:
- Open the `build.gradle.kts` file with IntelliJ and choose "Open as Project"
- Make sure "Create separate module per source set" is selected
- Make sure  "Use default gradle wrapper" is selected
- Select a Java 11 VM as "Gradle JVM"
- In the "File already exists" dialogue, choose "Yes" to overwrite
- In the "Open Project" dialogue, choose "Delete Existing Project and Import"