Add trello board to readme
Add trello board to readme

adamlincoln/Bookie,GreenLunar/Bookie,teodesson/Bookie,GreenLunar/Bookie,teodesson/Bookie,skmezanul/Bookie,adamlincoln/Bookie,pombredanne/Bookie,charany1/Bookie,teodesson/Bookie,skmezanul/Bookie,wangjun/Bookie,adamlincoln/Bookie,bookieio/Bookie,adamlincoln/Bookie,wangjun/Bookie,pombredanne/Bookie,bookieio/Bookie,charany1/Bookie,skmezanul/Bookie,teodesson/Bookie,wangjun/Bookie,charany1/Bookie,pombredanne/Bookie,GreenLunar/Bookie,skmezanul/Bookie,bookieio/Bookie,bookieio/Bookie,GreenLunar/Bookie,wangjun/Bookie