added correct plos-links to paper-rss
added correct plos-links to paper-rss

vivekiitkgp/snpr,openSNP/snpr,gedankenstuecke/snpr,gedankenstuecke/snpr,gedankenstuecke/snpr,philippbayer/snpr,openSNP/snpr,openSNP/snpr,vivekiitkgp/snpr,openSNP/snpr,vivekiitkgp/snpr,philippbayer/snpr,philippbayer/snpr,gedankenstuecke/snpr,philippbayer/snpr,vivekiitkgp/snpr