you can do things in your examples that would require lots of tedious configuration (say of a mysql server) that you really don't want to force on your readers.
They get to see the a couple of runs of your scripts without having to install everything, configure mysql and then find out your modules' not as cool as they thought.
And, you don't have to re-run the scripts and copy/paste their output every time you change them
To install Pod::Elemental::Transformer::ExampleRunner, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Pod::Elemental::Transformer::ExampleRunner
CPAN shell
perl -MCPAN -e shell install Pod::Elemental::Transformer::ExampleRunner
For more information on module installation, please visit the detailed CPAN module installation guide.