Fixing link to ddl.sql file in README
Fixing link to ddl.sql file in README

kisdead/killbill-analytics-plugin,daliwei/killbill-analytics-plugin,daliwei/killbill-analytics-plugin,kevinpostlewaite/killbill-analytics-plugin,killbill/killbill-analytics-plugin,kisdead/killbill-analytics-plugin,daliwei/killbill-analytics-plugin,killbill/killbill-analytics-plugin,kisdead/killbill-analytics-plugin,kevinpostlewaite/killbill-analytics-plugin,kevinpostlewaite/killbill-analytics-plugin,kisdead/killbill-analytics-plugin,kevinpostlewaite/killbill-analytics-plugin,daliwei/killbill-analytics-plugin