About hello

Demo project showing executable Jar for "Hello, World" non-GUI app. This is the generated archetype POM with an extra description, updated JUnit from version 3 to 5, uses Java 11, uses UTF-8 for text files, added plugin to allow goal of "mvn exec:java", updated the site plugin to include the unit test report, added source code cross-reference plugin to the reports, and added versions plugin to view and manage versions of plugins. See https://maven.apache.org/pom.html for details on POM.xml settings.