Fixed bullet points in README
Fixed bullet points in README

dlew/joda-time-android,lucasxas/joda-time-android,andyao/joda-time-android,ptornhult/joda-time-android,dlew/joda-time-android,lucasxas/joda-time-android,netfirms/joda-time-android,ptornhult/joda-time-android,xfumihiro/joda-time-android,rjhonsl/joda-time-android,xfumihiro/joda-time-android,rjhonsl/joda-time-android,netfirms/joda-time-android,andyao/joda-time-android