Include a GitHub markdown file

Here is a markdown file from the public repositoryeclipse/jetty.project available at this url: https://github.com/eclipse/jetty.project/blob/jetty-10.0.x/README.md.

Include a GitHub source file

Here is a source file from the public repositoryeclipse/jetty.project available at this url: https://github.com/eclipse/jetty.project/blob/jetty-10.0.x/scripts/looptest.sh.