MNT : add details about where the config files go
MNT : add details about where the config files go

NSLS-II-SRX/docs,danielballan/docs,NSLS-II/docs,waynelewis/nsls-ii-docs,NSLS-II/docs,NSLS-II-SRX/docs,danielballan/docs,tacaswell/docs,waynelewis/nsls-ii-docs