jetty-distribution-with-logback/src/main/assembly/site-component.xml

<assembly>
  <id>site-component</id>
  <formats>
    <format>jar</format>
  </formats>
  <fileSets>
    <fileSet>
      <directory>${basedir}/target/dist-src</directory>
      <outputDirectory>jetty-distribution-${version}-site-component</outputDirectory>
      <includes>
        <include>target/site/**</include>
        <include>README**</include>
        <include>VERSION**</include>
        <include>LICENSES/**</include>
      </includes>
    </fileSet>
  </fileSets>
</assembly>