Adding the plugin to your POM

The Maven Site Indexer is a standard maven plugin and can be added in the following way to your pom.xml.

<plugin>
    <groupId>org.uniknow.maven.plugins</groupId>
    <artifactId>index</artifactId>
    <version>${index.version}</version>
    <executions>
        <execution>
            <phase>post-site</phase>
            <goals>
                <goal>index</goal>
            </goals>
        </execution>
    </executions>
</plugin>