Added twelve-days to config.json
Added twelve-days to config.json

jtigger/xjava,exercism/xjava,jtigger/xjava,jmluy/xjava,FridaTveit/xjava,exercism/xjava,nickRm/xjava,nickRm/xjava,jmluy/xjava,FridaTveit/xjava