Turns out the bigtest golden ref is failing a_count_diff, need to fix that before removing the default statement.
Base example code is fine. New shell script to run default case and then nofullskip.
Expects returncode=2 after running nofullskip.
Tidying up of newstart.rst and fifo.sv to include as much code as possible by reference.
Should reduce repetition and make it easier if changes occur in source.
Worked exercise using the MAX_DATA parameter, highlighting its
incompleteness. Includes completed examples in /golden subdirectory.
Also some formatting changes for spacing and extra links.
