Updated README to point to latest release.
Updated README to point to latest release.

janisz/marathon,natemurthy/marathon,bsideup/marathon,drewrobb/marathon,lelezi/marathon,cherrydocker/marathon-1,meln1k/marathon,c089/marathon,sielaq/marathon,spacejam/marathon,14Zen/marathon,timcharper/marathon,titosand/marathon,SivagnanamCiena/marathon,ayouwei/marathon,pgkelley4/marathon,gsantovena/marathon,bsideup/marathon,rtward/marathon,quamilek/marathon,Caerostris/marathon,mikejihbe/marathon,sttts/marathon,cgvarela/marathon,guenter/marathon,sttts/marathon,gsantovena/marathon,Yhgenomics/marathon,MrMarvin/marathon,sepiroth887/marathon,ramitsurana/marathon,EasonYi/marathon,cgvarela/marathon,HardikDR/marathon,airbnb/marathon,c089/marathon,c089/marathon,sledigabel/marathon,sepiroth887/marathon,bsideup/marathon,MrMarvin/marathon,janisz/marathon,ayouwei/marathon,Yhgenomics/marathon,janisz/marathon,murat-lacework/marathon,lelezi/marathon,sepiroth887/marathon,ss75710541/marathon,sttts/marathon,Caerostris/marathon,murat-lacework/marathon,rtward/marathon,mikejihbe/marathon,matsluni/marathon,EvanKrall/marathon,timcharper/marathon,manojlds/marathon,okuryu/marathon,14Zen/marathon,Kosta-Github/marathon,manojlds/marathon,sledigabel/marathon,rtward/marathon,pugna0/marathon,bobrik/marathon,MrMarvin/marathon,IanSaunders/marathon,hangyan/marathon,Caerostris/marathon,gsantovena/marathon,EvanKrall/marathon,sielaq/marathon,ss75710541/marathon,HardikDR/marathon,mikejihbe/marathon,Yhgenomics/marathon,guenter/marathon,cherrydocker/marathon-1,murat-lacework/marathon,sielaq/marathon,mesosphere/marathon,pgkelley4/marathon,meln1k/marathon,sttts/marathon,spacejam/marathon,okuryu/marathon,EasonYi/marathon,janisz/marathon,mesosphere/marathon,meln1k/marathon,yp-engineering/marathon,titosand/marathon,gsantovena/marathon,airbnb/marathon,natemurthy/marathon,ramitsurana/marathon,drewrobb/marathon,IanSaunders/marathon,mesosphere/marathon,gsantovena/marathon,bobrik/marathon,ayouwei/marathon,felixb/marathon,guenter/marathon,spacejam/marathon,vivekjuneja/marathon,cgvarela/marathon,sielaq/marathon,natemurthy/marathon,spacejam/marathon,matsluni/marathon,cherrydocker/marathon-1,meln1k/marathon,mesosphere/marathon,Caerostris/marathon,ss75710541/marathon,felixb/marathon,guenter/marathon,okuryu/marathon,HardikDR/marathon,ramitsurana/marathon,hangyan/marathon,sledigabel/marathon,quamilek/marathon,manojlds/marathon,SivagnanamCiena/marathon,SivagnanamCiena/marathon,vivekjuneja/marathon,airbnb/marathon,pugna0/marathon,airbnb/marathon,hangyan/marathon,14Zen/marathon,EvanKrall/marathon,yp-engineering/marathon,IanSaunders/marathon,14Zen/marathon,quamilek/marathon,lelezi/marathon,bobrik/marathon,timcharper/marathon,matsluni/marathon,mesosphere/marathon,felixb/marathon,EvanKrall/marathon,guenter/marathon,vivekjuneja/marathon,EasonYi/marathon,Caerostris/marathon,janisz/marathon,c089/marathon,Kosta-Github/marathon,felixb/marathon,drewrobb/marathon,meln1k/marathon,bobrik/marathon,drewrobb/marathon,pugna0/marathon