add README about config directory being overwritten
add README about config directory being overwritten

cboling/xos,cboling/xos,cboling/xos,zdw/xos,cboling/xos,cboling/xos,open-cloud/xos,opencord/xos,zdw/xos,opencord/xos,open-cloud/xos,open-cloud/xos,zdw/xos,zdw/xos,opencord/xos