fix a link
fix a link

... which would otherwise 404
bradurani/core,rgrempel/core,alexiamcdonald/elm-core,bradurani/core,martinos/core,simonh1000/core,martinos/core,ThomasWeiser/core,alexiamcdonald/elm-core,simonh1000/core,rgrempel/core,Pisys/core,ThomasWeiser/core,Pisys/core