jetty.project/demos/demo-template/pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <parent>
    <groupId>org.eclipse.jetty.demos</groupId>
    <artifactId>demos-parent</artifactId>
    <version>11.0.8-SNAPSHOT</version>
  </parent>

  <modelVersion>4.0.0</modelVersion>
  <artifactId>demo-template</artifactId>
  <name>Demo :: Template</name>
  <packaging>jar</packaging>

  <build>
    <plugins>
        <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-jar-plugin</artifactId>
        <configuration>
          <includes>
              <include>index.html</include>
              <include>small_powered_by.gif</include>
          </includes>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>