Add notes on how to run and write frontend tests
Add notes on how to run and write frontend tests

willu47/smif,nismod/smif,tomalrussell/smif,tomalrussell/smif,nismod/smif,willu47/smif,willu47/smif,nismod/smif,willu47/smif,tomalrussell/smif,nismod/smif,tomalrussell/smif