Update config.wyam
Update config.wyam

Fixed a typo and, hopefully, fixed the grammar in the first line.
adamclifford/Wyam,adamclifford/Wyam,adamclifford/Wyam,adamclifford/Wyam,Wyamio/Wyam,Wyamio/Wyam,Wyamio/Wyam,adamclifford/Wyam